Question

7. A person pushes on a 5.00 kg box with a force of 15.0 N to the right. As a result, the box moves at a constant speed of 10.0 m/s.​

Answer 1

Given,

Mass of the box, m = 5 kg

Force, F = 15 N

Speed of the box, v = 10 m/s

Assuming we need to determine weight, normal force, and the frictional force on the box.

Weight of the box = m g = 5 x 9.8 = 49 N

Normal force on the box = Weight of the box = 49 N.

Frictional force on the box will be equal to 15 N because box is moving with constant velocity.