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The rear side of truck is open and a box...

The rear side of truck is open and a box of mass 50kg is placed at 3.2m away from the open end. The co-efficient of friction between the box and the surface is 0.2. If the truck starts from rest and moves on a straight road with acceleration `2.1ms^(-2)` the box falls off the truck after a time `(g=10ms^(-2))`

A

`(8)/(sqrt41)`

B

4s

C

8s

D

`sqrt8s `

Text Solution

Verified by Experts

The correct Answer is:
C
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