contestada

If circumference C = 2 pi r where r is the radius, how long would it take a car to travel
once around a circular track with a 80 meter radius if it is traveling 50 m/s ?

Respuesta :

1. Find the circumference of the circle
C = 2*3.14*80
C = 502.4 meters

2. Find the time
t = d/s
t = 502.4m/50m/s
t = 10.048 seconds

It would take about 10.048 seconds to travel around the track

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