1: (1 point) acts on a o.2 kg ball initially at rest An impuise of 14.61 What is

Question

1: (1 point) acts on a o.2 kg ball initially at rest An impuise of 14.61 What is the change in momentum of the ball, in kgm/s? 4.ol Question 2: (1 point) An impulse of 14.3 Ns acts on a 0.200 kg ball initially at rest. B. What is the final speed of the ball? Use the symbols in the units Question 3: (1 point) A ball traveling with an initial momentum of 4.5 kg momentum of-3.5 kgm/s. What is the change in momentum of the ball? m/s bounces off a wall and comes back in the opposite direction with a include sign in the answer

Explanation / Answer

1. Impulse = change in momentum

change in momentum = 14.6 kg m/s

2. 14.3 = delta(p) = m (vf - vi)

14.3 = 0.2(v - 0)

v = 71.5 m/s

3. change in momentum = pf - pi

= - 3.5 - 4.5

= 8 kg m/s

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