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A plank is moving on ground with a veloc...

A plank is moving on ground with a velocity `v` and a block is moving on the plank with respect to it with a velocity `u` as shown in figure. What is the velocity of block with respect to ground ?

A

`v - u` towards right

B

`v - u` towards left

C

`u` towards right

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A

`vec v_b = vec v_(b,p) + vec v_p`
=`(-u) + v`(toward sign) `= v - u`.
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