Jaką siłą nalezy dzialac na wozek o msie 40 kg, aby w ciagu 10 s nadac mu predkosc 108 km/h ?
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m=40 kg
t = 10 s
v= 108 km/h = 30 m/s
F= m*a
a= v/t
F= m * v/t
F= 40 kg * 30 m/s / 10 s
F = 120 kg * m/s^2 = 120 N