Question

PLEASE HELP FOR MEDAL AND FAN

Answer 1

Which equation would best help solve the following problem?

Rita hits a tennis ball with an initial vertical velocity of 15 m/s. When she hits the ball, it is 1 m above the ground. How long will it take for the ball to hit the ground?

A. -4.9t^2 + 15t + 1 = 0

B. 4.9t^2 + 15t + 1 = 0

C. -4.9t^2 + 15t = 1

D. -16t^2 + 15t + 1 = 0

Answer 2

@Directrix please help

Answer 3

IF YOU ARE DOING CALCULATIONS OR SOMETHING PLEASE LET ME KNOW THE SUSPENSE IS STRESSFUL

Answer 4

-4.9^2+15t=1

Answer 5

So it would be C

Answer 6

Thank you. Show your work please?

Answer 7

use
h = ut + gt^2 / 2
h = 1m, u = 15 and g = -9.8.
so -4.9 t^2 + 15t = 1

Answer 8

But how did you get the value for g?

Answer 9

the G was spous to be a T

Answer 10

This problem has to do with physics, but could also be seen in Algebra with minimal explanations.

Answer 11

but how i got it was by multiplying

Answer 12

What background have you in this particular topic?
If you have any equations in your textbook (or online) pertaining to this question, share it please.

Answer 13

Robert: Keep in mind that you may need to define your variables:

use
h = ut + gt^2 / 2
h = 1m, u = 15 and g = -9.8.
so -4.9 t^2 + 15t = 1

What's u stand for? g? Can't assume that everybody knows.