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A bob is suspended from a carne by a cab...

A bob is suspended from a carne by a cable of length `l=5m` . The carne and load are moving at a constant speed `v_(0)` The crane is stopped by a bumper and the cable swings out an angle of `60^(@)` . Find the initial speed `v_(0).(g=9.8m//s^(2))`

Text Solution

Verified by Experts

The correct Answer is:
A
`h=l-lcos60^(@)=(l)/(2)=2.5m`

`v_(0)=sqrt(2gh)=sqrt(2xx9.8xx2.5)=7m//s`
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