Bungee jumper A woman attached to a bungee cord jumps froma bridge that is 30 m above a river. Her height in meters abovethe river t seconds after the jump is y(t) = 15(1 + e-t cos t), fort Ú 0.a. Determine her velocity at t = 1 and t = 3.b. Use a graphing utility to determine when she is moving downward and when she is moving upward during the first 10 s.c. Use a graphing utility to estimate the maximum upward velocity.

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