Question

The rear side of truck is open and a box
of mass 50 kg is placed at 3.2 m away
from the open end. The coefficient 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 2.1 ms 2 the box falls off the
truck after a time (g=10 ms-2)​

Answer 1

NANAB...

Acceleration due to slipping between box and surface, a=2.1−(0.2×10)=0.1

As, t= 2s/a

a=0.1;s=3.2⇒t=8 sec..

Hoep usefull...