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A 900 g ball moves in a vertical circle on a 1.08 mm-long string. If the speed at the top is 4.20 m/sm/s, then the

A 900 g ball moves in a vertical circle on a 1.08 mm-long string. If the speed at the top is 4.20 m/sm/s, then the speed at the bottom will be 7.74 m/sm/s.

Part A

What is the magnitude of gravitational force acting on the ball?

FG=

Part B

What is the tension in the string when the ball is at the top?

Ttop =

Part C

What is the tension in the string when the ball is at the bottom?

Tbottom=

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