Tension in Circular Motion!

Classical Mechanics Level 4

A heavy particle of weight W W , attached to a fixed point by a light in-extensible string describes a circle in a vertical plane. The tension in the string has the values m W mW and n W nW respectively, when the particle is at the highest and the lowest points in the path respectively . If n – − m = α n –- m = \alpha then find the value of α \alpha is


The answer is 6.

Nishant Rai by Nishant Rai , 25, India

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1 solution

Nishant Rai
May 31, 2015

6 Helpful 0 Interesting 0 Brilliant 0 Confused

Can u plz explain the tension expression. Thanx in advance

Kyle Finch - 6 years ago

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@Kyle Finch It is the generalized expression for tension experienced by the string in Vertical Circular Motion at any angle θ \theta . You can also derive it by using Conservation of Energy .

Nishant Rai - 6 years ago

@Nishant Rai shouldn't the tension at the top be zero? so the answer should be 5

William G. - 4 years, 4 months ago

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