Question: A sled accelerates down a hill and then slows down after it reaches a flat portion of ground. The speed of the sled s (t)

A sled accelerates down a hill and then slows down after

A sled accelerates down a hill and then slows down after it reaches a flat portion of ground. The speed of the sled s (t) (in ft/sec) at a time t (in sec) after movement begins can be approximated by:s(t) = 1.5t for 0?t?3040 / t - 29 for 30

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