a body is moving in a circular path while attached to a string , which has a tension of 25N , if the length of the string is 1 m and velocity of the body is 2 m/s , what is the mass of the body ?
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If its horizontal circle case ...then
Tension in the string = centripetal force=centrifugal force
T=25 N
L=radius of path=1
Velocity=2 m/s
Tension=mv^2/r
25=m*4/1
m=25/4
=6.25 kg
If its a vertical circle case then its not possible as velocity will change at different points and we are just provided with a single velocity.
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