Eugenia and Bor stand at rest on roller blades as shown in the image below. Eugenia then pushes Bor with some constant force. Bor’s mass is 70 kg and Eugenia’s mass is 54 kg.   1)    State the hypothesis you are testing. The hypothesis should be the idea or general equations that are using to make the prediction.    2 ) Use the hypothesis to predict the ratio of Bor’s and Eugenia’s speeds after Eugenia pushed Bor.

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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?”