A 220 g ball falls vertically downward, hitting the floor with a speed of 2.9 m/s and rebounding upward with a

Question

A 220 g ball falls vertically downward, hitting the floor with a speed of 2.9 m/s and rebounding upward with a speed of 2.0 m/s.

(a) Find the magnitude of the change in the ball's momentum. (Let up be in the positive direction.)

(b) Find the change in the magnitude of the ball's momentum. (Let negative values indicate a decrease in magnitude.)

Answer 1

momentum is a vector quantity

The initial momentum is
-.220*2.9

After collision with the floor,
.220*2.0

the change in magnitude is
0.220(2.9-2.0)

j

Answer 2

b. the project states that the ball is becoming interior the air, velocity is simpley the process the fee, no rely if it incredibly is falling, it may be interior the course that it incredibly is falling. Acceleration is because of gravity, which it constantly between the middle of mass of the two gadgets, this occasion the middle of the cannon ball and the middle of the Earth. The cannon ball does pull on earth, yet that's insignificant whilst in comparison with the mass of the Earth which attracts on the outdoors at an acceleration of 9.eighty one m/s^2.