Question

Which equation would best help solve the following problem?

Maria releases a javelin 1.5 meters above the ground with an initial vertical velocity of 22 meters per second. How long will it take the javelin to hit the ground?

Answer 1

14.6

Answer 2

a –4.9t2 + 22t + 1.5 = 0

b –4.9t2+ 22t = 1.5

c –4.9t2 + 1.5t + 22 = 0

d –16t2 + 22t + 1.5 = 0

Answer 3

–4.9t^2 + 22t + 1.5 = 0

–4.9t^2+ 22t = 1.5

–4.9t^2 + 1.5t + 22 = 0

–16t^2 + 22t + 1.5 = 0

Answer 4

which answer do u think it is?

Answer 5

b

Answer 6

did u find the roots for B ?

Answer 7

it's A) –4.9t^2 + 22t + 1.5 = 0
I'll explain why if u r interested?