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A man moves on his motorbike with 54 km/...

A man moves on his motorbike with `54 km//h` and then takes a U-turn and containues to move with same velocity The time of U-turn is `10 s`. Find the magnitude of average acceleration during U-turn.

A

0

B

`3ms^(-2)`

C

`1.5sqrt(2)ms^(-2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
`54km//h=54xx(5)/(18)=15m//s`
`lt a gt=(15-(-15))/(10)=3m//s^(2)`
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