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Exercício de equação de torricelli, desaceleração
Exercício:
um carro com velocidade de 72 km/h, quando freado, para após 50 metros. calcule a aceleraçao introduzida pelos freios
Informações Adicionais:
por favor me ajudem urgente !!
72 km/h = 20 m/s
Usando torricelli temos:
V*=Vo*+2.a.d
0=20*+2.a.50
-400=100.a
a=-400/100
a= – 4 m/s*
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