# Projectile

###### Question:

In Fig. 4-33, a stone is projected at a cliff of height hwith an initial speed of 42.0 m/sdirected 60.0° above the horizontal. The stone strikes atA,5.50 s after launching.

Figure 4-33

(a) Find the height, h, of the cliff.
m
(b) Find the speed of the stone just before impact atA.
m/s
(c) Find the maximum height H reached above theground.
m

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