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A particle starts from rest. Its acceler...

A particle starts from rest. Its acceleration at time t=0 is `5 m//s^(2)` which varies with time as shown in the figure. The maximum speed of the particle will be

A

7.5m/s

B

15m/s

C

30m/s

D

37.5 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
Area under a-t graph gives the change in velocity during given time interval.
`therefore u_("max")=(1)/(2)xx5xx6=15m//s`
Since initial velocity=0
`therefore` Maximum speed of the particle =15m/s
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