Question

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

Answer 1

Fn=ma
Fn-Net Force M- Mass A- acceleration
In this case you fnet (net force) is 100 N , your acceleration is 5m/s2 and you mass is unknown. You can alter the formula into Fn/A=M which will give you 100/5= 20
Therefore your answer is 20 kg which is A

Answer 2

Force = mass X acceleration
Mass = Force / Acceleration
F = 100 N
A = 5m/s^2
M = 100/5