A signal flare is fired upward from ground level with an initial speed of 294 m/s. A balloonist at a height of 2450 m sees it pass on the way up. How long will it be before the flare passes the balloonist again on the way down?
I HAVE NO IDEA HOW TO SOLVE :(

Question

A signal flare is fired upward from ground level with an initial speed of 294 m/s. A balloonist at a height of 2450 m sees it pass on the way up. How long will it be before the flare passes the balloonist again on the way down?
I HAVE NO IDEA HOW TO SOLVE :(

anonymous · Answer

Think about the effect gravity has on the flare

anonymous · Answer

if the flare launches with an initial speed of 294m/s and the effect of gravity on all objects is 9.8m/s^2

anonymous · Answer

when the flare reaches its maximum height, its velocity is zero.  with that information, taking into account gravity, you can find a distance

anonymous · Answer

so you know how far above the balloon it will be, then you know it falls with gravity, so you can find the time it takes to get to the balloon