A car of mass is moving on a horizontal road with velocity components towards the…
PHYSICS · Multi-part · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A car of mass 1200kg is moving on a horizontal road with velocity components 20ms−1 towards the east and 15ms−1 towards the north. Using this information, answer the following:
(a) Write the velocity of the car in unit-vector notation.
(b) Determine the linear momentum vector of the car in unit-vector notation.
(c) Find the magnitude of the car’s momentum and the angle it makes with the eastern direction.
(d) If the car were to move purely eastward with the same magnitude of momentum found in part (c), calculate the speed it would need to have.