Question

If an object is dropped from a height of 144 ft, the function h(t) = –16t² + 144 gives the height of the object after t seconds. When will the object hit the ground?

Answer 1

A. 9 s
B. 6 s
C. 1.5 s
D. 3 s

Answer 2

Either B or D?

@Xanthe
@dmezzullo

Answer 3

wait D? 3 seconds?

Answer 4

Substitute h n find t

Answer 5

@terenzreignz

Answer 6

ok

Answer 7

When the object hits the ground... its height is zero, right? :)

Answer 8

yeah lol

Answer 9

i got D :P

Answer 10

Well... yeah, that is correct, in fact :D
Whatever you did, nice job :)

Answer 11

thanks :)