Physics, asked by rajnishlochab, 8 months ago

a ball of mass 5 Kg strikes against a wall at a angle of 45 degree and is reflected at a same angle. find change in momentum

Answers

Answered by Palakbyahut14
2

Answer:

Change in momentum = 10ucos45

Step by step explanation :

Given in the question,

mass of ball = 5kg

angle at which it deflected back = 45°

Formula to use

change of mometum = mΔucosФ

where m = mass

           u = velocity

          Ф = angle

          Δ = change

The change in momentum equals the mass times the change in velocity.

change in momentum = impulse

                                   = 5ucos45 - (- 5ucos45)

                                    = 2 (5ucos45)

                                    = 10ucos45

Similar questions