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15-09-2019
Physics

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pls how to solve this problem. help would be appreciated

pls how to solve this problem help would be appreciated class=

Respuesta :

MathPhys MathPhys

15-09-2019

Answer:

80 m/s

Explanation:

Given:

a = -5 m/s²

v = 0 m/s

Δx = 640 m

Find: v₀

v² = v₀² + 2a(x − x₀)

(0 m/s)² = v₀² + 2(-5 m/s²) (640 m)

v₀ = 80 m/s

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