Рівняння руху: h = vt - gt^2/2.
40 = 30•t - 10•t^2/2
8 = 6t - t^2
t^2 - 6t + 8 = 0
t1 = 2 с
t2 = 4 с
Δt = t2 - t1 = 4 - 2 = 2 c
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Рівняння руху: h = vt - gt^2/2.
40 = 30•t - 10•t^2/2
8 = 6t - t^2
t^2 - 6t + 8 = 0
t1 = 2 с
t2 = 4 с
Δt = t2 - t1 = 4 - 2 = 2 c