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A particle starting from rest has a cons...

A particle starting from rest has a constant acceleration of `4 m//s^2` for 4 s. It then retards uniformly for next 8 s and comes to rest. Find during the motion of particle (a) average acceleration (b) average speed and (c) average velocity.

A

`8m//s`

B

zero

C

`4m//s`

D

`16 m//s`

Text Solution

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The correct Answer is:
A
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