College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- A bowler throws a bowling ball of radius R = 11 cm along a lane. The ball (the figure) slides on the lane with initial speed vcom.O friction between the ball and the lane is 0.29. The kinetic frictional force k acting on the ball causes a linear acceleration of the ball while producing a torque that causes an angular acceleration of = 8.4 m/s and initial angular speed wo 0. The coefficient of kinetic the ball. When speed vcom has decreased enough and angular speed p has increased enough, the ball stops sliding and then rolls smoothly. During the sliding, what are the ball's (a) linear acceleration and (b) angular acceleration? (c) How long does the ball slide? (d) How far does the ball slide? (e) What is the linear speed of the ball when smooth rolling begins? Note that the clockwise direction is taken as negative. Vcom (a) Number -2.84 Units m/s^2 (b) Number -64.59 Units rad/s^2 (c) Number Units 0.84 (d) Number" Units (e) Number Units TTIIarrow_forwarda flat circular frisbee of mass 2.26 and radius .669 meters is thrown in such a way that the speed of its center is .838 m/s, and it rotates at 21.7 rotations per minute. the kinetic energy isarrow_forwardMehularrow_forward
- A solid sphere with a mass of 1.0 kg and radius of 10 cm rolls down an inclined plane that is 1.0 m long andat an angle of 26◦ from the horizontal. The sphere is released from rest at the top of the plane, and it rollsdown to the bottom where it continues to roll along a horizontal surface.(a) What is the rotational speed of the sphere at the bottom of the plane?(b) What is the angular momentum of the sphere at the bottom of the plane?(c) How many revolutions does the sphere make if it rolls along the horizontal surface for 25 s before comingto a stop?Hint: you can assume the acceleration of the sphere along the horizontal surface is constant.arrow_forwardA bus contains a 1500 kg, 0.600 m radius flywheel (a disk) and has a total mass of 10,000 kg. (a) Calculate the angular velocity the flywheel must have, in rad/s, to contain enough energy to take the bus from rest to a speed of 18.0 m/s, assuming 82.0% of the rotational kinetic energy can be transformed into translational energy. rad/s (b) How high a hill, in meters, can the bus climb with this stored energy and still have a speed of 5.00 m/s at the top of the hill?arrow_forwardHelp with this physics problemarrow_forward
- Lx Gi A 325-kg merry-go-round with a radius of 1.50 m is spinning counterclockwise, as viewed from above, at 4.80 rad/s. A 35.0-kg child is hanging on tightly 1.25 m from the rotation axis. Her father applies friction to the outer rim to slow the merry-go-round to a stop in 5 s. Model the merry-go-round as a solid disk, and define counterclockwise as the positive direction of rotation. How much torque t must the child's father apply? 432 T = N-m Incorrectarrow_forwardSuppose you had a machine for 100% efficiently transferring kinetic energy of a rotating bicycle pedal to electrical energy. If the mass of a pedal is 200 g, (a) how fast must the pedal be moving to power a 17.00 W LED light? (b) what is the angular speed, in rpm, if the distance from the centre of the crank to the pedal is 16 cm?arrow_forwardA bowler throws a bowling ball of radius R = 11 cm along a lane. The ball (the figure) slides on the lane with initial speed vcom.O friction between the ball and the lane is 0.29. The kinetic frictional force 7k acting on the ball causes a linear acceleration of the ball while producing a torque that causes an angular acceleration of = 8.4 m/s and initial angular speed wo 0. The coefficient of kinetic the ball. When speed vcom has decreased enough and angular speed p has increased enough, the ball stops sliding and then rolls smoothly. During the sliding, what are the ball's (a) linear acceleration and (b) angular acceleration? (c) How long does the ball slide? (d) How far does the ball slide? (e) What is the linear speed of the ball when smooth rolling begins? Note that the clockwise direction is taken as negative. Vcotm (a) Number Units (b) Number Units (c) Number Units (d) Number Units (e) Number Unitsarrow_forward
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