A signal rocket launched vertically upward flared 6 seconds after launch at the highest point of its trajectory.

A signal rocket launched vertically upward flared 6 seconds after launch at the highest point of its trajectory. How high did the rocket rise? With what initial speed was it launched?

Equation for speed: V = V0-gt. At the top point 0 = V0-6g.
For g = 10 we get V0 = 60.
Or:
h = g * t ^ 2/2 = 10 * 36/2 = 180 m
V0 = g * t = 10 * 6 = 60 m / s
Answer: 60m / s



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