Question

A car weighing 1600 kg is accelerated to 30m/s from start in 20s. Calculate the

acceleration of the car and the magnitude of the force applied. ​

Answer 1

Acceleration = 1.5m/s²

Force applied = 2,400N

Step-by-step explanation:

Force is defined as the product of mass of an object and its acceleration.

Force = mass * acceleration and acceleration = velocity/time

Force = mass*(velocity/time)

Given Mass of the car = 1600kg, velocity = 30m/s and time taken = 20secs

Substituting this values in the formula will give;

Force = 1600 * 30/20

Force = 1600 * 1.5

Force = 2,400N

Magnitude of the force applied = 2,400N

Since acceleration = velocity/time

Acceleration = 30/20

Acceleration = 1.5m/s²

Acceleration of the car is 1.5m/s²