Let R be the distance between the cylinder and the center of the turntable. Now

Question

Let R be the distance between the cylinder and the center of the turntable. Now assume that the cylinder is moved to a new location R/2 from the center of the turntable. Which of the following statements accurately describe the motion of the cylinder at the new location?

Check all that apply.
a.The speed of the cylinder has decreased.
b.The speed of the cylinder has increased.
c.The magnitude of the acceleration of the cylinder has decreased.
d. The magnitude of the acceleration of the cylinder has increased.
e. The speed and the acceleration of the cylinder have not changed

Explanation / Answer

note : angular velocity and angular acceleration remains constant

a>right velocity= radius *angular velocity as radius becomes half velocity decreases.

b>wrong

c>right acceleration=radius*angular acceleration as radius decreases acceleration decreases

d>wrong

e>wrong

the answer are A and C.

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