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16 November, 17:54

The velocity of a ball changes from ‹ 8, - 4, 0 › m/s to ‹ 7.88, - 4.21, 0 › m/s in 0.03 s, due to the gravitational attraction of the Earth and to air resistance. The mass of the ball is 130 grams. What is the equation to find the rate of change of momentum of the ball?

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  1. 16 November, 21:29
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    Answer: m (v-u) = ft

    Explanation:f = force

    t = time, m = mass, v = final velocity, u = initial velocity m (v-u) = change in momentum. Momentum is define as the product of mass and velocity of a body. Hence change in momentum of a body is equal to impulse (the product of force and time to which it act on a body).
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