AT a local circus, a human is launched out of a canon from ground level upward a

Question

AT a local circus, a human is launched out of a canon from ground level upward at an angle of 60 degree, with an initial speed of 22m/s. she lands on a platform that is of unknown height 3.0 seconds later.
a) what is the maximum height she achieves.
b) what is the height of the platform?
c) what is the horizontal displacement (from launch) when she lands on the platform?
d) what angle does she hit the platform (with respect to the horizontal) ?
e) what speed does she achieve just before hitting the platform?

Explanation / Answer

h = (vf

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