Question

A solid weighing 50kg is placed on a solid surface how much force is required to move the block when the coefficient of friction is 0.25 between the block and the surface?

Answer 1

Answer:

49 newron

Explanation:

Mass is 20kg

So the weight of the object is

W=20 × 9.8 =196 newton

Which is equal to the NORMAL REACTION FORCE on the object

Welding strength is μ×N

= 0.25×196 = 49N

To move the object we have to break the welding. The minimum force required to move the object is 49 newton