A)
V = vo + at
0 = Vo -10 . 4
Vo = 40 m/s
B)
V² = Vo² -2ah
0 = 40² - 2 . 10 . h
0 = 1600 - 20 h
h = 1600/20
h = 80 m
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A)
V = vo + at
0 = Vo -10 . 4
Vo = 40 m/s
B)
V² = Vo² -2ah
0 = 40² - 2 . 10 . h
0 = 1600 - 20 h
h = 1600/20
h = 80 m