A 50.0 kg child stands at the rim of a merry-go-round of radius 2.35 m, rotating with an angular speed of 3.50 rad/s.
(a) What is the child's centripetal acceleration?
m/s²
(b) What is the minimum force between her feet and the floor of the carousel that is required to keep her in the circular path?
N
(c) What minimum coefficient of static friction is required?
Is the answer you found reasonable? In other words, is she likely to stay on the merry-go-round?
Yes
No
A machine part rotates at an angular speed of 0.35 rad/s; its speed is then increased to 2.1 rad/s at an angular acceleration of 0.75 rad/s². Find the angle through which the part rotates before reaching this final speed.
rad