An automobile of mass is moving in a straight line with a speed of
PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum
Problem
An automobile of mass 1200kg is moving in a straight line with a speed of 15ms−1. Answer the questions that follow.
(i) Calculate the linear momentum of the automobile in SI units.
(ii) Express the value obtained in part (i) in newton–second (Ns) without changing its magnitude.
(iii) If the momentum of the automobile becomes half of the value calculated in part (i) while its mass remains unchanged, determine its new speed.