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The 0.8 kg collar slides freely on the f...

The 0.8 kg collar slides freely on the fixed vertical circular rod. Calculate the velocity v of the collar as it hits the stop at B if it elevated from rest at A by the actionof the constant 40N force in the cord. The cord is guided by the small fixed pulleys.

A

`40 m//s`

B

`4 sqrt(2) m//s`

C

`32 m//s`

D

`8 m//s`

Text Solution

Verified by Experts

`W_(T)+W_(g)=DeltaKE`
`40xx(0.5-0.1)-0.8xx10xx0.4`
`=1//2mv^(2)-0`
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