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A bob of mass m is suspended from the ce...

A bob of mass `m` is suspended from the ceiling of a train moving with an acceleration a as shown in figure. Find the angle `theta` in equilibrium position.

Text Solution

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Non-inertial fiame of reference (Train)
F.B.D. of bob w.r.t. train. (real forces + pseudo force) : with respec to train bob is in equilibrium
`thereforesumF_(x)=0impliesT sin theta=ma`
`impliestantheta=a/gimpliesthetatan^(-1)((a)/(g))`
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