physics

the force acts on a 50g ball varies with time.if the initial velocity of the particles is 20m/s.what is the average acceleration of ball during this time?

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  1. You would have to know the force to determine what the average acceleration is. Knowing the initial velocity does not help at all.

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  2. what acceleration is imported to a football when the player kicked it with a force of 25 N? mass of football 0.40kg

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