In Fig. 4-30 a stone is projected at a cliff of height h with an initial speed of 42.0 m/s directed at angle theta_(0)=60.0^(@) above the horizontal. The stone strikes at A, 5.50 s after launching. Find (a) the height h of the cliff, (b) the speed of the stone just before impact at A, and ( c) the maximum height H reached above the ground.

In Fig. 4-30 a stone is projected at a cliff of height h with an initi

1.	In Fig. 4-30 a stone is projected at a cliff of height h with an initial speed of 42.0 m/s directed at angle theta_(0)=60.0^(@) above the horizontal. The stone strikes at A, 5.50 s after launching. Find (a) the height h of the cliff, (b) the speed of the stone just before impact at A, and ( c) the maximum height H reached above the ground.
Answer» SOLUTION :(a) 5.50 s, (B) 27.4 m/s, ( C) 67.5 m

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