Question

A car travells from a point A from the point B at constant speed of 50 km / h on return journey along the same path, it travells at a constant speed 40 km/h .find its distance travelled, displacement and average speed?

Answer 1

Displacement is zero as he came back to the initial point. Average speed is

2vi vf/ vi + vf

So 2*50*40/50+40

4000/90= 44.4km/hr.