Question

5.(a) why is law of conservation of momentum. A man throws a ball of mass 0.4kg vertically upward with a velocity of 10m/s. what will be its initial momentum? What would be its momentum at the highest point of its reach? solve this questions ​

Answer 1

Answer:

1. Law of conservation of momentum states that for two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed.

2. It is given that,

Mass of the ball, m = 0.4 kg

Initial velocity of the ball, u = 10 m/s

At the highest point, the final velocity of the ball, v = 0

The initial momentum of the ball is given by the product of mass and velocity. It can be calculated as :

p= m*u

p= 0.4*10 m/s

p= 4 m/s

At the highest point,

p=m*0=0.

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