Question

Calculate the magnitude of force which when applied on a body of mass $0.5kg$ produces an acceleration of $5m{s}^{-2}$.

• A. $2.8$ $N$
• B. $2.5$ $N$
• C. $5$ $N$
• D. $10$ $N$

Answer 1

The correct option is B $2.5$ $N$

$m=0.5kg$
$a=5m/s^2$
From Newton's second law of motion, $F=ma$
Force, $F=0.5\times 5=2.5N$