A 4kg ball and a 3 kg ball move on a smooth horizontal plane along a straight-line path with speed of + 6 and -8m/s respectively. Determine the following: a) Speed of the 3kg ball after impact if the impact is inelastic or plastic b) Speed of the 3kg ball after impact if the impact is elastic or plastic c) Speed of the 3kg ball after impact if the coefficient of restitution e = 005

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Q: A 4kg ball and 3 kg ball move on a smooth horizontal plane with speeds of 6m/s to the right and 8m/s…

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”