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Two bodies are launched from the ground vertically upwards with an initial velocity of 400 [m...

Two bodies are launched from the ground vertically upwards with an initial velocity of 400 [m / s] and with a time interval between each release of 20 [s]. Determine
a) The time it takes to reach the maximum height. b) The maximum height reached
c) The meeting time of the bodies.
d) The height at which they are found
e) The speed of each body at the moment of the encounter
F) The speed just before hitting the ground.

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