23.
A body freely falling from a height h describes in the last second of its fall. The height h is
16
(g = 10ms)
1) 80m
2) 45 m
3) 160m
4) 40m
Answers
Answered by
3
Answer:
In question it is not clear that what is required to find.
V = u + gt
V = u + 10 x 1
V = (u + 10)m/s
v^2 - u^2 = 2gs
u^2 + 100 + 20u - u^2 = 2 x 10 x 16
20u = 320 - 100 = 220
u = 11m/s
V = 21m/s
21 = 0 + 10t
t = 2.1s
From all these values you can find anything.
Answered by
2
Answer:
80 noo 45 noooo 160 nooooooo 40 noooooooooo
Explanation:
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