Question

Explain why placing wheels under a heavy box reduces the necessary force required to push it along at a constant speed. Please describe the types of friction (static, sliding, kinetic, rolling, or fluid) this is showing and how it is different from other types of friction.

Answer 1

rolling

Step-by-step explanation:

It is usually greater than static friction. ... The coefficient of kinetic friction is less than the coefficient of static friction. When the box is stationary, w|| equals the force of static friction, but once the box starts moving, the sliding reduces the normal force, which in turn reduces the friction.