Question

A body is moving in a vertical circle of radius 'r'. If the ratio of maximum to minimum speed's is sqrt3 :1. Then find the ratio of maximum to minimum tensions in the string.​

Answer 1

Explanation:

Let v1 and v2 be the velocities at the lowest and the highest points.

∴v2v1=13

Conserving energy between the lowest and highest points gives

v12=v22+2gh

⇒3v22=v22+2gh

⇒v22=gh

⇒v12=3gh

h is distance between the lowest and the highest points which is 2r.

h=2r

Tensions at the lowest and highest point

T1=rmv12+mg

T2=rmv22−mg

⇒T2T1=

Answer 2

Explanation:

Answer:

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Step-by-step explanation:

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