Question

A car is driving at a speed of 50 m/s. After 6 seconds he notices a wreck up ahead and slows down to 20 m/s. What is his acceleration

Answer 1

the acceleration of the car is -5 m/s².

Step-by-step explanation:

Given;

initial velocity of the car, u = 50 m/s

time of motion, t = 6 s

final velocity of the car, v = 20 m/s

The acceleration of the car is calculated as;

`a = (v-u)/(t) \\\\a = (20-50)/(6) \\\\a = - 5 \ m/s^2`

Therefore, the acceleration of the car is -5 m/s².