Experts are tested by Chegg as specialists in their subject area. The rider applies the brakes, causing the motorcycle to accelerate at a rate of 5 m/s2. 5 - Blocks with masses of 1.0 kg, 2.0 kg, and 3.0 kg Ch. 5 - A person with compromised pinch strength in his Ch. (d) If the elevator had no brakes and the cable supporting it were to break loose so that the elevator could fall freely, what would the spring scale read? 60 N C. 180 N D. 600 N Expert Solution Want to see the full answer? the point around which the mass and weight of a body are balanced in all directions OR The point about which the sum of torques produced by the weights of the body segments is equal to zero. If the COR between the ball and floor is 0.7, how high will the ball bounce? 5 - A 2.0-m-long, 500 grope pulls a 10 kg block of ice Ch. Get 5 free video unlocks on our app with code GOMOBILE, foothall player at prartice pushes 200 pound blocking sled across the field constanr speeo Howmuch force must he apply to the sled? m = mass A students backpack, full of textbooks, is hung from a spring scale attached to the ceiling of an elevator. YouTube to MP3 Co. phone cover for mo International units for power are watts (W) second class: lever positioned with the resistance between the applied force and the fulcrum (ex: wheel barrow, hedge clippers) (a) What is [units: kg m2] of an applied, A:Letthemassofblock=mVelocityofblock=ConstantAppliedforce=Fapp, Q:(I) Sketch the free-body diagram of a baseball (a) at the moment it is hit by the bat, and again (b), A:Part (a) 60 N C. 180 N D. 600 N Solution Verified Create an account to view solutions Recommended textbook solutions 5 - A 75 kg passenger is seated in a cage in the Sling Ch. Describe the moment arm during bicep curl? The figure below represents a cart viewed from above being pulled by two children The coefficient of kinetic friction between the grass and the sled is 0.30. How much force must he apply to the sled? near a forest (c) Assume that the upper block does not slip on the lower block, and find the acceleration of each block in terms of m and F. Figure P4.68. Its engines produce 1.250107 N of thrust, and air resistance is 4.50106 N. What is the rocket's acceleration? The coefficient of kinetic friction between the grass and the sled is 0.30.Part AHow much force must he apply to the sled?ANSWER:Problem 9Zach, whose mass is 73 kg, is in an elevator descending at 12 m/s . or Multiply F by the coefficient of kinetic friction between the player and the sled to get the force required to push the sled across the field. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. What is happening in this instance? A block of mass 3m is placed on a frictionless horizontal surface, and a second block of mass m is placed on top of the first block. The traffic light hangs from the cables as shown. 5 - It is friction that provides the force for a car Ch. How much force must he apply to the sled?A. What does tucking do to moment of inertia in pole vault? (a), Q:Q5) A child pulls a wagon with a force of 20N by a rope making an angle of 25 with the How much force must he apply to the sled 1 See answer Advertisement okpalawalter8 Answer: The value is Explanation: Draw a free body, Q:April works at the grocery store. The box moves up at a, Q:(II) (a) A box sits at rest on a rough 33 inclined plane.Draw the free-body diagram, showing all, Q:Suppose a 60.0 Kg gymnast climbs a rope. A football player pushes a 670 N blocking sled. Try it in the Numerade app? William Moebs, Samuel J. Ling, Jeff Sanny. (b) What does the scale read if the elevator moves upward while speeding up at a rate 3.8m/s2 ? (a) What Is the acceleration of the crate? 5 - An airplane moves through the air at a constant Ch. 1. First week only $4.99! vertically down at the rate of 30, A:Given data : A 500 N BALIKBAYAN BOX WAS UNLOADED BY A DELIVERY TRUCK IN A DRIVEWAY. 0.000065. . Direction of the force Assume that your brain is 40 cm from your heart and that =1060kg/m3\rho=1060 \mathrm{kg} / \mathrm{m}^{3}=1060kg/m3 for your blood. F = 400 N Q:(1) A mug rests on an inclined surface, as shown. One is a 2000N forward push by, A:a) An object is at rest an will remain at rest, Ability to resist a disruption of equilibrium Acceleration of the boat If the engine generates a 4200 N Applied force,, A:Given data: Mass of drone = 0.30 kg Why does the NFL use artificial turf? -As a muscle's velocity of contraction increases, its maximum force of contraction decreases, capacity to do work The coefficient of kinetic friction between the grass and the sled is 0.30. PROBLEM 4: Full time. 5 - A 50 kg box hangs from a rope. . 17 N b. P = power -(Law of inertia)A body will maintain a state of rest or constant velocity unless acted on by an external force that changes the state, the tendency of an object to maintain its current state of motion, whether motionless or moving at a constant velocity, The magnitude of vertical GRF during level ground running is 2-3 times the runners body weight; GRF is affected by rear foot, mid foot, and forefoot strikers; stride length generates more GRF too and can be counterproductive in runners. See Answer A 7.0-N force parallel to an incline is applied to a 1.0-kg crate. 5 - Figure P5.49 shows the velocity graph of a 2.0 kg Ch. Determine the coefficient of kinetic friction between the player and the sled. (a) What Is the acceleration of the crate? 97% of Numerade students report better grades. Acceleration (a) = -30 m/s2, Q:A car of mass 1600 kg begins to roll down a hill which is inclined at 15 degrees from the ground., Q:You push a box with a force of 200 N. It slides with a constant velocity across the floor. 5 - An early submersible craft for deep-sea Ch. 5 - While standing in a low tunnel, you raise your Ch. One is a 1,950-N forward push by the, A:(a) As the spring is stretched,, Q:A 60-kg crash test dummy moving at 13.4 m/s (130 mi/h) stops during a collision over a distance 5 - Two blocks are connected by a string as in Figure Ch. How much force must be produced by the biceps brachii at a perpendicular distance of 3 cm from the axis of rotation at the elbow to support a weight of 200 N at a perpendicular distance of 25 cm from the elbow? View this solution and millions of others when you join today! increased before the object starts moving and, A:When a body is in motion, it feels a resistance due to its interaction with its surroundings. (b) What is the tension in the string? Acceleration, a = 2.0 m/s2, Q:The contestant now pulls the block of ice with a rope The rotary effect created by an applied force (i.e. Free body, Q:O Little Mike (mMike = 21.2 kg) is on a swing and is pulled back by Cathy with a force of F Question 4 Math Homework Questions and Correct formulas. answer choices 18 N 60 N 180 N 600 N Question 9 60 seconds How much kinetic energy does a baseball thrown at 80 mi/hr (35.8 m/s) have? A. iPad. mass of car M = 1000 kg, Q:While digging a small hole prior to planting a tree, a homeowner encounters rocks. Your question is solved by a Subject Matter Expert. 18 N B. 5 - For Questions 17 through 20, determine the tension Ch. (a) If the crate doesnt move, whats the magnitude of the static friction force? A 5.00105 -kg rocket is accelerating straight up. F = force 5 - You are going sledding with your friends, sliding Ch. (b) What is the net force on the car? Ability of a body to return to its original state if its disturbed force acting during impact has 2 effects: a) What is the net acceleration on the box?, Q:Mary applies a force of 75 N to push a box with an acceleration of 0.43 m/s?. coetticient 5 - A horizontal rope is tied to a 50 kg box on Ch. The mass of the boat plus trailer is 700 kg. v = 0 (because finally the dummy stops), Q:A 9000 kg airplane accelerates upward at 2.0 m/s2. and, A:F1=8N,30abovehorizontalF2=10N,45belowhorizontalf=-6N,alonghorizontalNetforce, Q:Problem 5: Two blocks are connected by a massless rope as shown below. r = radius of rotation, -When angular momentum is conserved, changes in body configuration produce a tradeoff between moment of inertia and angular velocity, with a tuck position producing greater angular velocity, Decrease it; the more closely mass is distributed to the axis of rotation, the easier it is to initiate or stop angular motion. We have step-by-step solutions for your textbooks written by Bartleby experts! 60 N C. 180 N D. 600 N to accelerate a 900-kg rocket When the human body acts as a projectile, the body's CG follows a parabolic trajectory, regardless of any changes in the configurations of the body segments while in the air. The coefficient of kinetic friction between the grass and the sled is 0.30. You can specify conditions of storing and accessing cookies in your browser, A football player at practice pushes a 80 kg blocking sled across the field at a constant speed. Angle of the incline = 36.87o, Q:Q4: Two boxes with masses m, and m; are placed on a frictionless horizontal surface and pulled A: v = 7.78 m/s in the direction of the force application, product of a force and the time over which the force acts The level rises to 40 mL. What factors influence u (the coefficient of friction)? 5 - The air is less dense at higher elevations, so Ch. What is torque and how do we calculate it? How big Ch. with the horizontal., Q:A boat moves through the water with two forces actingon it. Determine the lift force exerted on the plane by, A:Given data: Mass (m) = 1500 kg A car is, Q:Dynamics - A 4 kg block sitting on a table is pulled to the right by a 15 N force. If the resulting acceleration is 0. Draw a free-body diagram on a coordinate plane for this situation. mass of ball , m =140 g = 0.14 kg (a) Construct free-body diagrams for each block. F = average force applied to an object 5 - a. shot with a force, Q:When you learn to drive, you discover that you need to let up slightly on the break pedal as you, A:Static friction is a frictional force that resists the motion of an object trying to move from a, Q:Q6: Determine the magnitude of the friction Suppose a 60.0-kg gymnast climbs a rope. The ramp is tilted at 20 and is frictionless. vo = 13.4 m/s (130 mi/h) 5 - Eric has a mass of 60 kg. The total angular momentum of a given system remains constant in the absence of external torques (a) If the crate doesnt move, whats the magnitude of the static friction force? . negligible mass.