A box is sitting in the back of a truck and the truck is at rest....
A box is sitting in the back of a truck and the truck is at rest. The truck begins to accelerate in the positive x direction, and the box does not slip at all, but instead accelerates with the truck at the same rate. What is the direction of friction acting on the box?
a. positive x direction
b. negative x direction
c. there is no friction acting on the box because it isn’t slipping
d.it depends on the truck’s acceleration
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