Question

Asa 500N woman sits on the floor, the floor exerts on her a force of?

Answer 1

500 N

Step-by-step explanation:

The woman is sitting on the floor, this means that she is in equilibrium: therefore, her acceleration is zero (a=0), so according to Newton's second law

F = ma

the net force acting on her (F) must also be zero.

There are only two forces acting on the woman:

- The force of gravity (also called weight, W), acting downward, of magnitude 500 N

- The normal reaction exerted by the floor on her, N, acting upward

So the equation of the forces for the woman is

`N-W=ma=0`

Since the net force is zero.

From the equation, it follows that

`N=W=500 N`

So, the floor exerts 500 N of force on the woman.