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A car starts from Hither, goes 50 km in a straight line to Yon, immediately turns around, and returns to Hither. The time for this round trip is 2 hours. The average speed of the car for this round trip is:

Respuesta :

migueletorallam

Answer:

[tex]v_{average}= 50\frac{km}{h}[/tex]

Explanation:

We will consider this to be a linear motion problem. To find the average speed we need to know the total distance the car travaled and the total time it takes to travel that distance.

Average speed is defined as:

[tex]v_{average}= \frac{total\ distance}{total\ time}[/tex].

The car traveled 50km from Hither to Yon then it traveled 50km from Yon to Hither.

[tex]total\ distance=50km+50km=100km[/tex]

The round trip takes 2 hours, so :

[tex]v_{average}= \frac{100km}{2h}[/tex]

[tex]v_{average}= 50\frac{km}{h}[/tex].

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