Question

WILL GIVE BRAINLIEST

Answer 1

Answer:

$2\:\mathrm{m/s^2}$

From Newton's 2nd Law, we have $\Sigma F=ma$. Substituting given values, we have:

$40=20a,\\a=\frac{40}{20}=\boxed{2\:\mathrm{m/s^2}}$