Answer:
(C) 3.78 seconds
Explanation:
At the highest point, the velocity is equal to 0m/s
; t is the time to reach the highest point
The time the ball takes to return to its starting point after the ball reach its maximum height is the same:
Answer:
18 m
1.1 s
Explanation:
Given:
v₀ = 22 m/s
v = 11 m/s
a = -10 m/s²
Find: Δy
v² = v₀² + 2aΔy
(11 m/s)² = (22 m/s)² + 2 (-10 m/s²) Δy
Δy ≈ 18 m
Find: t
v = at + v₀
11 m/s = (-10 m/s²) t + 22 m/s
t = 1.1 s
Answer:
D. Drawing a conclusion about something