A net force of 100 N is moving a mass with an acceleration of 5 m/s2. What is the mass of the object?
Answer
A
0.05 kg
B
20 kg
C
95 kg
D
500 kg
Explanation
Newton’s second law is F = ma, so the mass is m = F/a. Substituting 100 N and 5 m/s² gives m = 100 ÷ 5 = 20 kg. Therefore, the correct choice is 20 kg.
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