Arocket is launched from the top of a 55-foot cliff with an initial velocity of 138 ft/s.
a. s...
Mathematics, 03.01.2020 12:31 drippyc1363
Arocket is launched from the top of a 55-foot cliff with an initial velocity of 138 ft/s.
a. substitute the values into the vertical motion formula h = –16t2 + vt + c. let h = 0.
b. use the quadratic formula to find out how long the rocket will take to hit the ground after it is launched. round to the nearest tenth of a second.
answer choices:
a. 0 = –16t2 + 55t + 138; 0.4 s
b. 0 = –16t2 + 55t + 138; 9 s
c. 0 = –16t2 + 138t + 55; 0.4 s
d. 0 = –16t2 + 138t + 55; 9 s
Answers: 2
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