A body is in contact with the vertical front part of the truck. The coefficient of friction between the body and the truck is #mu# . The minimum acceleration with which the truck should travel so that the body does not fall down is ?
(1)#mu# /g
(2)#mu# g
(3)g/#mu#
(4)#mu^2# g
(1)
(2)
(3)g/
(4)
1 Answer
Explanation:
Suppose,when the truck moves with acceleration
.
So,
Now,the body will not fall only when,its weight will be just balanced by frictional force acting between the body and the truck.
So,here frictional force acting =
Hence,
or,