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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)

Relative velocity of plank with to block when acceleration of plank is `4m//s^(2)` wil be

A

zero

B

10 m/s

C

6 m/s

D

8 m/s

Text Solution

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The correct Answer is:
c
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