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Kipish [7]
3 years ago
15

A stone is projected from the ground with a velocity 14m/s one second later it clears a wall 2 m high. The angle of projection i

s?
Physics
2 answers:
Eva8 [605]3 years ago
6 0

Answer:

30 degrees

i can't put in my work on paper

leva [86]3 years ago
6 0

Answer:

30°

Explanation:

y = y₀ + v₀ᵧ t + ½ gt²

Given: y₀ = 0 m, v₀ = 14 m/s, and g = -9.8 m/s².

At t = 1 s, y = 2 m.

2 = 0 + (14 sin θ) (1) + ½ (-9.8) (1)²

sin θ = 6.9/14

θ ≈ 29.5°

Rounded to one sig-fig, the angle of projection is about 30° from the horizontal.

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