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A flare was fired straight up at a speed of 25 m/s from the bed of a truck traveling along a level road at a speed of 15 m/s.

a. Assuming the flare landed back in the bed of the truck, how much time was the flare in the air?

b. How far horizontally did the flare travel before landing back in the bed of the truck?

c. What maximum height did the flare reach?

Some equations that i thought might help with this problem are

deltaX=vi+deltaT*1/2adeltaT^2

but since i do not no the cange in X or the time i can not use this equation

To try and figure out this problem i made a chart showing what horizontal and vertical things that i already knew

H V

0=ax ay=10 m/s^2

15 m/s=Vxi Vyi=25 m/s

=deltaX deltaXy=

deltaT=

0=ax ay=10 m/s^2

15 m/s=Vxi Vyi=25 m/s

=deltaX deltaXy=

deltaT=

thank you for your time