At the center of a 40.1 m diameter circular (frictionless) ice rink, a 72.8 kg skater travelling north at 1.14 m/s collides with and holds onto a 61.2 kg skater who had been heading west at 4.74 m/s. How long will it take them to glide to the edge of the rink? Ans: 8.90 s b)  Where will they reach it? Give your answer as an angle north of west. (Attached below is what I attempted for b), but apparently it is wrong)

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Q: kg

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Q: 2. A0.200kg softball is pitched at 35m/s and leaves the bat at 55m/s straight towards second base.…

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A:

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A:

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Q: A 200 kg cannon rests on a smooth surface. It fires a 10 kg cannonball in horizontal direction. The…

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Q: A 30-kg girl and a 40-kg boy are together, standing at rest on their ice skates on an ice skating…

A: Given data- Mass of the girl mg=30 kg Mass of the boy mb=40 kg Initially both were at rest thus…

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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?”