Question

a) Define momentum of a body.
b) A ball is thrown vertically upward.what is it's momentum at the higest point?
c) State the law of conservation of momentum.​

Answer 1

Answer:

A) Momentum is the quantity of motion of a moving body. It is expressed mathematically as p = m * v and has units of kg m/s. The principle of conservation of momentum states that in an isolated system, two objects that collide have the same combined momentum before and after the collision.

B) momentum is the product of mass and velocity of a particular material . And when ball is thrown vertically upwards its velocity at highest point is zero . Therefore momentum P = m× v = m × 0 =0.

C) The law of momentum conservation can be stated as follows. For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

Explanation:

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Answer 2

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a) It is defined as the product of mass and velocity.

b) Since V= 0 at the highest point, therefore, the momentum of the ball is zero at the highest point.

c) In the absence of external force, the net momentum of a system remains conserved.