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A small block of mass 1 kg starts moving...

A small block of mass 1 kg starts moving with constant velocity 2 m/s on a smoth long plank of mass 10 kg which is also pulled by a horizontal force `F=10 t` where t is is in seconds and f in newton 's (the initial velocity of the plank is zero)

the time `(tne0)` at which displacement of block and plank with esspect with repect to ground is same will be

A

2S

B

`2sqrt(3) s`

C

`3sqrt(3)s`

D

4s

Text Solution

Verified by Experts

The correct Answer is:
b
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