Question

Find the force needed to speed up a car of mass 1000 kg with a rate of 5 $m{s}^{–2}$.

• A. 200 N
• B. 5000 N
• C. 2000 N
• D. 500 N

Answer 1

The correct option is B 5000 N

From Newton’s second law,
Force = Mass x Acceleration
Therefore,
The force required to speed up the car, F = 1000 kg x 5 $m{s}^{-2}$
F = 5000 kg $m{s}^{-2}$ or 5000 N