Question

WILL GIVE BRAINLIEST

Answer 1

Mass of girl =55kg
acceleration due to gravity =9.8m/s^2

So, the force she is applying on the floor must equal
55× 9.8 N
(Because force =mass ×acceleration)
=539N

Now, according to newton's third law the floor must be applying the same force on the body in the opposite direction.
So the force applied here by the floor is 539N upward.


Option "C" is the correct one.

Answer 2

The answer is at least 539 N up