9. Jenny is sitting on a sled on the side of a hill inclined at 15....

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9. Jenny is sitting on a sled on the side of a hill inclined at 15°. What force is required to keep the sled from sliding down the hill if the combined weight of Jenny and the sled is 90 pounds? (Show work) 9. Jenny is sitting on a sled on the side of a hill inclined at 15°. What force is required to keep the sled from sliding down the hill if the combined weight of Jenny and the sled is 90 pounds? (Show work)

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To find the force required to keep the sled from sliding down the hill we need to con... View the full answer