A rocket model is launched with an initial velocity of.235ft/s. the rockets heig

Question

A rocket model is launched with an initial velocity of.235ft/s. the rockets height h (in feet) after t seconds is given by the following.
h=235t-16t^2

Find all the values of t for which the rocket's height is 151 feet. Round both your answers to the nearest hundredth.

2. A rocket is launched with an initial velocity of 235 The rocke heighth (infeet) after t seconds is ft/s. model given by the following. Find all the values of t far which h 235r 16t? nearest hundredth If there is more the rockers height is 151 feet. answers to the than one answer, use or to separate Round your them [i1pts 23 1 0.67 1401

Explanation / Answer

h = 235*t - 16*t^2

when h = 151 ft

151 = 235*t - 16*t^2

16*t^2 - 235*t + 151 = 0

Solving the quadratic equation:

t = [-(-235) +/- sqrt (235^2 - 4*16*151)]/2*16

t = [235 +/- sqrt 45561]/32

t1 = [235 + 213.45]/32 = 14.01 sec

t2 = [235 - 213.45]/32 = 0.673 sec

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