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Question

a skater is traveling initally at 2 m/s. He hits a ramp, and obtains a constant acceleration of -0.5 m/s2. Determine his position at 1-second intervals, and predict how long he will be on the ramp.

Answer 1

The skater will be on the ramp for 8 seconds: 4 to come to a stop and 4 to slide back down--due to the symmetry of the problem.