Question

Find the displacement of a car which increases its speed from 20 m/s to 80 m/s in
12 seconds.

TNSCERT Class 9 General Science Ch 6 Motion

Answer 1

Displacement = (change in velocity) / time taken
=> (v-u) / t
=> (80 - 20) / 12
=> 40/ 12
= 10/ 3 metres
= 3.333..... meters