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
Kinetic energy = 1/2 m v^2 = 1/2 x1.5 x10^-3 x 0.36
Answer:
what.....................
i edited this answer
please mark me as brainlist
