Question

A vehicle starting from rest attains a speed of 72 kilometre per hour after covering a distance of hundred metre if the mass of the vehicle is 500 kg the force exerted by the engine is

Answer 1

A ball is thrown vertically upwards with an initial velocity such that it can reach a maximum height of 15m .If at same instance a stone is dropped from a height of 15m ,find ratio of distances travelled by them when they cross each other.