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This problem statement applies to questions 44-47: A sled i…

This problem statement applies to questions 44-47: A sled is pulled to the top of a hill. The sketch above indicates the shape of the hill. At the top of the hill the sled is released from rest and allowed to coast down the hill. At the bottom of the hill the sled has a speed v and a kinetic energy E (the energy due to the sled’s motion). Answer the following questions. In every case friction and air resistance are so small they can be ignored. Question 47: For the higher hill that is less steep, how does the kinetic energy of the sled at the bottom of the hill after it has slid down compare to that of the original hill? A. The kinetic energy of the sled at the bottom is greater for the higher but less steep hill.B. The kinetic energy of the sled at the bottom is the same for both hills.C. The kinetic energy at the bottom is greater for the original hill.D. There is not enough information given to say which kinetic energy is greater.J. None of these descriptions is correct.

A sled on ice moves in the ways described in questions 1-7 b…

A sled on ice moves in the ways described in questions 1-7 below. Friction is so small that it can be ignored. A person wearing spiked shoes standing on the ice can apply a force to the sled and push it along the ice. Choose the one force (A through G) which would keep the sled moving as described in each statement below. Across the 7 questions, you may use a choice more than once or not at all but choose only one answer for each. If you think that none is correct, answer choice J. Question 6: The sled is slowing down at a steady rate and has an acceleration to the right. Which force would account for this motion?