4. Consider the motorcyclist driving along a vertical circular track. Assume that the wheels of the motorcycle roll without slipping. Draw a free body diagram of the motorcyclist at the circled position. Draw a square around the force components that contribute to the centripetal acceleration. Draw a circle around the force components that contribute to the tangential acceleration. a. b. For each force component in your free body diagram in part (a), determine whether the work done by the force component is positive, negative, or zero.

4. Consider the motorcyclist driving along a vertical circular track. Assume that the wheels of the motorcycle roll without slipping. Draw a free body diagram of the motorcyclist at the circled position. Draw a square around the force components that contribute to the centripetal acceleration. Draw a circle around the force components that contribute to the tangential acceleration. a. b. For each force component in your free body diagram in part (a), determine whether the work done by the force component is positive, negative, or zero.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 36P: The angular position of a rod varies as 20.0t2radians from time t=0 . The rod has two beads on it as...

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A wind turbine is rotating conterclockwise at 0.5 rev/s and slows to a stop in 10 s. Its blades are 20 m in length. (a) What is the angular acceleration of the turbine? (b) What is the centripetal acceleration of the tip fo the blades at t=0s ? (c) What is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s ?
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A flywheel (l=50kgm2) starting from rest acquires an angular velocity of 200.0 rad/s while subject to a constant torque from a motor for 5 s. (a) What is the angular acceleration of the flywhell? (b) What is the magnitude of the torque?
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Integrated Concepts An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. (a) What is its angular acceleration in rad/s2? (b) What is the tangential acceleration of a point 9.50 cm from the axis of rotation? (c) What is the radial acceleration in m/s2 and multiples of g of this point at full rpm?
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