A professional stunt performer at a theme park dives off a tower, which is 21 m high, into water below. The performer's height, h, in metres, above the water at t seconds after starting the jump is given by h -4.9t^2 -21. a) How long does the performer take to reach the halfway point? b) How long does the performer take to reach the water? c) Compare the times for parts a) and b). Explain why the time at the bottom is not twice the time at the halfway point

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
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A professional stunt performer at a theme park dives off a tower, which is 21 m high, into water below. The performer's height, h, in metres, above the water at t seconds after starting the jump is given by h -4.9t^2 -21.

a) How long does the performer take to reach the halfway point?

b) How long does the performer take to reach the water?

c) Compare the times for parts a) and b). Explain why the time at the bottom is not twice the time at the halfway point

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