A 0.25 kg ball is attached to a string. The ball goes around in a circle...
A 0.25 kg ball is attached to a string. The ball goes around in a circle that is horizontal (parallel) to the ground. The circular path has a radius of 1.5 m. The rotation is at a constant rate of 50 rpm.
a) list the given
b) what is the tangential velocity of the ball?
c) what is the centripetal acceleration (magnitude and direction)?
d) what is the magnitude of the tangential acceleration?
e) what is the soure of the centripetal force?
f) what is the magnitude of this force?
g) what is the magnitude of this force?
h) what is the magnitude of this force if the radius of the balls path is doubled?
i) what is the magnitude of this force if the radius of the balls path is the original value but the speed doubles?
Homework Answers
The direction of centripetal acceleration is towards the centre along the radius.
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