Velocity is defined as the rate of change of displacement.A car travels from A to Bat 60 km./hr and returns to A at 90 km//hr. What is its average velocity and average speed?

Velocity is defined as the rate of change of displacement.A car travel

1.	Velocity is defined as the rate of change of displacement.A car travels from A to Bat 60 km./hr and returns to A at 90 km//hr. What is its average velocity and average speed?
Answer» SOLUTION :AVERAGE velocity=0 Average SPEED`(2v_1v_2)/(v_1+v_2)=(2xx60xx90)/(60+90)=72kmh^-1`