A 30 kg child rides a 9 kg sled down a frictionless ski
A 30 kg child rides a 9 kg sled down a frictionless ski slope. At the bottom of the hill, her speed is 7 m/s. If the slope makes an angle of 15° with the horizontal, how far did she slide on the sled?
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a fisherman notices that his boat is moving up and down periodically without any horizontal motion owing to waves on
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a 30 kg child rides a 9 kg sled down a frictionless ski slope at the bottom of the hill her speed is 7 ms if the slope
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