Two balls of masses 4m and 8m are in motion with velocities 2v and v respectively. The ratio of their momentum would be : 1. 2 : 1 2. 1 : 2 3. 1 : 1 4. 1 : 4

1 : 1 Reason Given, m 1 = 4m m 2 = 8m v 1 = 2v v 2 = v As, p = mv Hence, = = = 1 : 1 Hence, ratio of their momentum = 1 : 1

According to Newton's second law of motion, the change in momentum takes place in a direction :
opposite to the direction of force applied
perpendicular to the direction of the force applied
similar to the direction of the force applied
none of these