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valentinak56 [21]
3 years ago
11

2. A stone is thrown vertically upward with a speed of 22m/s.

Physics
1 answer:
Eduardwww [97]3 years ago
7 0

Answer:

Explanation:

Energy E is conserved:

E=\frac{1}{2}mv^2+mgh

If v₀ = 22m/s, h₀=0m and h₁=25m:

E=\frac{1}{2}mv_0^2=\frac{1}{2}mv_1^2+mgh_1

Solving for v₁:

v_1=\sqrt{v_0^2-2gh_1}

There is no real solution, because the stone never reaches 25m.

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Answer:

a=16.2m/s^{2}

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