Respostas

2013-07-18T21:35:14-03:00
Fr=m*a

75 = 25*a

a=75/25

a=3m/s²

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V²=Vo²+2*a*/\S
V²=0² + 2*3*96
V²=576

V= Raiz de 576

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V=24m/s
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2013-07-18T21:36:23-03:00
M = 25Kg
F = 75N
d= 96m
 Assim F = m*a
 75 = 25 * a
a = 75/25
a = 3 m/s²
usando Torricelli
v² = v² + 2*a*d
v² = 0² + 2*3*96
v² = 576
v = V576
v = 24 m/s
blza
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