Question

Which equation would best help solve the following problem:



Brett kicks a field goal with an initial vertical velocity of 42 meters per second. How long will it take the football to hit the ground?


–4.9t^2 – 42t = 0


–16t^2+ 42t = 0


–4.9t^2 + 42t = 0


16t^2 + 42t = 0

Answer 1

i think it would be D

Answer 2

no it is C

Answer 3

C is correct

Answer 4

Thats what i was thinking

Answer 5

–4.9t^2 + 42t = 0

Answer 6

b'cos displacement is "0", than using motio equation\[s=ut+(1/2)at\]

Answer 7

s(t) = –gt2 + v0t + h0

Answer 8

\[s=ut+(1/2)at ^{2}\]

Answer 9

@newtonson it is math not physics

Answer 10

yea.

Answer 11

but we can use p

Answer 12

not in math

Answer 13

and by the way that is displacement

Answer 14

formula