The mass of the block in the drawing is 10 kg. The coefficient of static friction between the block and the vertical wall is 0.50. What minimum force F is required to start the block moving up the wall?

The minimum force to start the block moving up the wall = 49 N

Explanation:

Friction: This is the force that tend to oppose the motion of two bodies in contact. The S. I unit of frictional force is Newton (N)

The minimum force required to start the block moving up the wall = Frictional Force.

I. e F = Frictional force.

And, F = μR ... Equation 1

Where μ = coefficient of static friction, R = Normal reaction.

But R = mg (on a level surface) ... Equation 2

Where m = mass, g = acceleration due to gravity.

Given: m = 10 kg,

Constant: g = 9.8 m/s²

substituting these values into Equation 2

R = 10 * 9.8

R = 98 N.

Also given: μ = 0.50

Substituting these values into equation 1

F = 98 * 0.5

F = 49 N.

Therefore The minimum force to start the block moving up the wall = 49 N