Answer to Question #216032 in Mechanical Engineering for Del

Mechanical Engineering

Question #216032

A car travels at 40kph for 2 hrs, at 50 kph for 1 hr and at 20 kph for 0.5 hr, find the average speed of the car.

Expert's answer

"v_{av}=\\frac{S}{T}\\\\v_{av}=\\frac{(40)2+(50)1+(20)0.5}{2+1+0.5}=40\\ kph"

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