Question

One football is kicked into the air with an initial vertical velocity of 44 feet per second. Another football is kicked it to the air with an initial vertical velocity of 40 feet per second.
a. Which football is in the air for more time?
b. Justify your answer to part (a).
THANK YOU!

Answer 1

Does this question come from algebra, calculus or physics?
Assuming that the football is kicked straight upward, an equation describing its vertical speed is \[v=v _{0}+at,\]
... where a is the (constant) acceleration and v_sub_0 is the initial velocity (which is a positive number in both parts of your posted problem).

Answer 2

In this problem, a = acceleration = g = the gravitational constant is the same for both cases. But the initial velocities are different. See what you can do with this info.

Answer 3

Thank you!