Alfredo and Kenishia launched a model rocket.?

Question

The rocket is supposed to release a parachute 300 feet in the air, 7 seconds after liftoff. They are firing the rocket at a 78 degree angle from the horizontal. Find the initial velocity of the rocket.

Answer 1

y(t)=300=vi*sin(78)*7-16*49
158 ft/s

just for fun, let's find the attitude of the rocket when the parachute deploys
vy(t)=vi*sin(78)-32*7
vy(t)= -69.14 ft/s
The rocket is descending and the height is 300 ft
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