Question

How fast will an 800 kg car accelerate if it is pushed with 4000N of force?

Answer 1

By the definition of the Newton's Second Law of Motion, we have:

$$F=ma,$$ $$a=\dfrac{F}{m}=\dfrac{4000\ N}{800\ kg}=5\ \dfrac{m}{s^2}.$$

Answer:

$a=5\ \dfrac{m}{s^2}.$