Question

56.
Using Newton’s second law of motion, if the force on an object is 20 N, and its mass is 5 g, what is its acceleration? (3 points)

Answer 1

Mathematical formulation of Newton's second law: F = m * a.
I think mass should be in kgs.
So answer should be a = F/m
= 20/0.05
= 2000/5
= 400 m/s^2

Answer 2

Almost right :)
\[F=ma=>a=\frac{F}{m}=\frac{20N}{0.005kg}=4,000~m/s^2\]