Answer:
2.26 s
19.6 m
Explanation:
Given:
Δy = 25.0 m
v₀ = 0 m/s
a = 9.8 m/s²
Find: t
Δy = v₀ t + ½ at²
(25.0 m) = (0 m/s) t + ½ (9.8 m/s²) t²
t = 2.26 s
Given:
v₀ = 0 m/s
a = 9.8 m/s²
t = 2.00 s
Find: Δy
Δy = v₀ t + ½ at²
Δy = (0 m/s) (2.00 s) + ½ (9.8 m/s²) (2.00 s)²
Δy = 19.6 m