A stationary block resting on the ground is pulled up with a tension force of 100N, but does not leave the ground.

If the block weighs 300N. what is the normal force the ground exerts on the block?

The normal force the ground exerts on the block, F = - 300 N

Explanation:

Given data,

The block pulled up with a tension force, T = 100 N

The weight of the block, W = 300 N

The weight of the block is due to the force of attraction of gravitation.

The surface exerts a force that is equal and opposite to the force acting on the block due to gravitation.

The weight of the block,

W = mg

300 N

The normal force the ground exerts on the block,

F = - mg

= - 300 N

Hence, the normal force the ground exerts on the block, F = - 300 N