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In this lesson, we will learn how to calculate the momentum of a particle moving in a straight line by using the formula H=mv.

Q1:

A body of mass 12 g accelerated from rest at 19 cm/s^{2}. Given that its motion was in a straight line, find its momentum 0.1 minutes after it started moving.

Q2:

A body of mass 49 g accelerated from rest at 7 cm/s^{2}. Given that its motion was in a straight line, find its momentum 0.1 minutes after it started moving.

Q3:

From a point that lies 225 cm below the ceiling of a room, a ball of mass 51 g was projected vertically upwards with a speed of 885 cm/s. If the change in the ball’s momentum when it hit the ceiling was 36 720 g⋅cm/s, determine the ball’s speed after the collision. Consider the acceleration due to gravity to be 9.8 m/s^{2}.

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