Question

A car accelerates from 45m/s to 0 m/s in 10 seconds what is the average acceleration of the car

Answer 1

Answer: $-4.5 m/s^2$

Explanation:

The average acceleration of the car is given by:

$a=\frac{v-u}{t}$

where

u = 45 m/s is the initial velocity

v = 0 m/s is the final velocity

t = 10 s is the time taken

Substituting the numbers into the equation, we find

$a=\frac{0 -45 m/s}{10 s}=-4.5 m/s^2$