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giprincipessa
giprincipessa giprincipessa
  • 05-05-2016
  • Physics
Answered

um carro com uma velocidade de 80 km\h passa pelo km 240 de uma rodovia as 7:30. a que horas este carro chegara a proxima cidade, sabendo-se que a mesma esta situada no km 300 dessa rodovia?

Verified Answer :

Edufirst
Edufirst Edufirst
  • 12-05-2016

From km 240 to km 300 there are 60 km.

The time to travel 60 km at 80km/h is t = d/V = 60km / 80 km/h = 3/4 h.

That is 45 minutes. Then the car will arrive at 7:30 + 45 min = 8:15.

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