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

The rear side of a truck is open and a box of 40 kg mass is placed 5 m from the open end The coefficient of friction between the box and the surface below it is 0.15 On a straight road the truck starts from rest and accelerates with `2 m//s^(2)` At what distance from the starting point does the box fall off the truck ? Ignore the size of the box .

A

`20m`

B

`10m`

C

`sqrt20m`

D

`5m`

Text Solution

Verified by Experts

The correct Answer is:
A
s = `(1)/(2) at^(2) , a' = a - mu g , t = sqrt((2l)/(a'))`
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GRB PUBLICATION-FRICTION AND CIRCULAR MOTION -OBJECTIVE QUESTIONS ( only one choice is correct )
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