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September 19, 2014

Homework Help: Algebra 1 / physics

Posted by ⒽⒺⓁⓅ on Thursday, September 5, 2013 at 4:23pm.

Multi-step prob During a trampoline competition, a trampolinist leaves the mat when her center of gravity is 6 feet above the ground. She has an initial vertical velocity of 32 ft/sec.
a. Use the vertical motion model (h=-16t^2+vt+s) to write an eqn that models the height h (in ft) of the center of gravity of the trampolinist as a function of the time t (in seconds) into her jump.
b. Does her center of gravity reach a height of 24 ft during the jump? Of so, at what time (s)?
c. On another jump, the trampolinist leaves the mat when her center of gravity is 6 ft above the ground and with an initial vertical velocity of 35 ft/sec. Does her center of gravity reach a hight of 24 ft on this jump? If so, at what time (s)?

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