A tow truck exerts a force of 2000 N on a car, causing it to accelerate at $2.5 \mathrm {~m} / \mathrm { s } ^ { 2 }$ What is the mass of the car?
A)80 kg
B)800 kg
C)2000 kg
D)5000 kg

Question

Quizplus · Accepted Answer

The mass of the car can be calculated using Newton's second law, $ F = ma $. Rearranging gives $ m = \frac{F}{a} = \frac{2000 \, \text{N}}{2.5 \, \text{m/s}^2} = 800 \, \text{kg} $.

A Tow Truck Exerts a Force of 2000 N on a Car