Study the following situations and answer the questions that follow.
PHYSICS · Multi-part · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
Study the following situations and answer the questions that follow.
(i) Derive, in symbolic form, the relation between the initial momentum p of an object and its new momentum when its velocity is doubled while its mass remains unchanged.
(ii) A stone of mass 0.5 kg and a steel ball of mass 2 kg are moving in one dimension such that their momenta are equal in magnitude. Calculate the ratio of their velocities.
(iii) If the velocity of the steel ball is suddenly reduced by 50% while the stone continues with its original velocity, determine the new momentum of the steel ball and state, with calculations, which object now has the greater momentum.