Respuesta :

MathPhys

Answer:

62.6 m/s down

Explanation:

Taking downward to be positive:

Given:

v₀ = 0 m/s

Δy = 200 m

a = 9.8 m/s²

Find: v

v² = v₀² + 2aΔy

v² = (0 m/s)² + 2 (9.8 m/s²) (200 m)

v = 62.6 m/s