Answer:
500 N
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
[tex]N-W=ma=0[/tex]
Since the net force is zero.
From the equation, it follows that
[tex]N=W=500 N[/tex]
So, the floor exerts 500 N of force on the woman.
