Question

When the net force that acts on a mass is 10 N, it accelerates at a rate of $50cm/s^2$. Determine its mass.

• A. 0.2 kg
• B. 2 kg
• C. 20 kg
• D. None of these

Answer 1

The correct option is C

20 kg

From the second law of motion, $F=ma$

$\Rightarrow m=\frac{F}{a}=\frac{10N}{0.5m/s^2}=20kg$