physics

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A child standing on the edge of a sheer cliff wall throws a rock down towards the ground below. The rock is thrown 67° below the horizontal at a speed of 22 m/s & lands 43 m from the base of the cliff wall. Ignore air drag.

A.) Determine how long the rock was in the air.
s

B.) Determine how high the cliff wall is.
m

C.) Determine how fast the rock was going upon impact.
m/s

D.) Determine the angle of impact.
°

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