Read the following statements carefully and answer the questions that follow.
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
Read the following statements carefully and answer the questions that follow.
(i) Define linear momentum and write its SI unit.
(ii) A student says, “A heavier object always possesses more momentum than a lighter object.” Do you agree with this statement? Give one illustrative example to support your answer without performing any numerical calculation.
(iii) A ball of mass 2kg moving with a speed of 3m s−1 and a ball of mass 1kg moving with a speed of 6m s−1 travel in the same direction. Using appropriate calculations, decide which ball has the greater momentum and explain how your answer relates to the student’s statement in part (ii).