A net force of 100 N is moving with an acceleration of 5m/s2. What is the mass of the object?

A. 20 kg

B. 95 kg

C. 500 kg

I think the correct answer from the choices listed above is option A. This is described Newton's second law of motion where the net force is equal to the product of the object's mass and acceleration.

F = ma

100 N = m (5 m/s^2)

m = 20 kg

Second motion law:

F=m*a

F - force [N]

m - mass [kg]

a - acceleration [m/s^2]

m = F/a = 100/5 = 20 [kg]

The correct answer is A