Question

A motorcyclist drives from A to B with a uniform speed of 30m/s and returns back with a speed of 20m/s , find the average speed and velocity

Answer 1

Answer: use the formula 2vu÷u+v since the distance covered here in both cases is equal

So, 2×20×30÷ 20+30

= 120÷ 50

= 2.4 m/s

Explanation: