Question

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?

Answer 1

The normal force the ground exerts on a stationary block that is pulled upward with a tension force of 100N, while the block weighs 300N, is 200N.

Step-by-step explanation:

The subject of the question is Physics, and it pertains to forces and motion. Specifically, it involves understanding the concepts of tension, gravity, and normal force in the context of a block being pulled while resting on a ground surface.

The student's question asks: If a stationary block weighing 300N is pulled up with a tension force of 100N but does not leave the ground, what is the normal force the ground exerts on the block? The answer to this question is that the normal force exerted by the ground on the block is 200N. This is calculated by subtracting the tension force from the block's weight (300N - 100N = 200N), as the block remains stationary and the net force in the vertical direction must be zero.

Answer 2

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

Step-by-step 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