Question

A box is placed on the bed of a truck. When the truck accelerates in the forward direction, then the mg direction of the force of friction between the lower surface of the box and the bed of the truck is
a) in backward direction
b) in forward direction
c) in the upward direction
d) in the downward direction​

Answer 1

(B) In forward direction.

Answer 2

The lower surface of the box and the bed of the truck in the forward direction.

Explanation:

As the box is placed in the accelerated frame of reference the box experiences pseudo force in the backward direction due to which the friction act in the forward direction to oppose the relative sliding.

Forward direction:

• It's crucial to distinguish between the direction of travel and the side of the road when adding details to highways or other routes.
• To do so, we define the four terms forward, backward, left, and right, which all refer to movement in a certain direction.