AMU Engineering 2020 solved paper Solved Paper

The rear side of a truck is open and a box of mass 2kg is placed on the truck 8m away from the open end. The truck starts from rest with an acceleration of 2m∕s2 on a straight road. The box will fall off the truck when it is at distance from the starting point equal to
(Given, µ=0.1 and g=10m∕s2 ).