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The displace ment of a body at any time ...

The displace ment of a body at any time t after starting is given by `s=10t-(1)/(2)(0.2)t^2`. The velocity of the body is zero after:

A

50 s

B

100 s

C

80 s

D

40 s

Text Solution

Verified by Experts

The correct Answer is:
A
`v=(ds)/(dt)=10-0.2t`
For `v=0`
`t=(10)/(0.2)=50`sec
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