Question

2. A ball of mass 1 kg moving with a speed
of 10 ms-1 rebounds after a perfect elastic
collision with the floor. Calculate the
change in linear momentum of the ball.
please tell the answer
I will give 50 points ​

Answer 1

Answer:

Given mass = 1 kg, speed = 10 ms-1

Initial momentum = mu = 1 × 10 = 10 kg ms-1

Final momentum = -mu = -10 kg ms-1

Change in momentum = final momentum – initial momentum = -mu – mu

Change in momentum = -20 kg ms-1a

now here one thing i want to clear to you that we can that final momentum is in minus now why?

because as in elastic collision what be his intial momentum Or displacement it will remain same in final momentum Or displacement only the minus sign comes beacuse is in opposite side.

now its easy to understand above explanation.

with best wishes

sohani sharma

Answer 2

Answer:

Question :

. A ball of mass 1 kg moving with a speed

of 10 ms-1 rebounds after a perfect elastic

collision with the floor. Calculate the

change in linear momentum of the ball.

Answer :

Please refer attachment.

Thank you !