Question

a car travels from stop a to stop b with a speed of 30 km/h and then returns back to A with a speed of 50 km /h . find(i) displacement of the car (ii)distance travelled by the car (iii)average speed of the car

Answer 1

there is no change in position hence displacement is 0
2. distance can't be calculated if time is not given
3. avg speed=36.5km/hr