Question

A cyclsit moving on a circular track of radius 50m completes one revolution in 4minutes.what is this a)average speed
b)average velocity in one revolution?

Answer 1

Answer:

Average speed = 1.30 m/s

Average velocity = 0 m/s

Explanation:

Given :

• Radius of the circular track = 50 metres

• One revolution is completed around the circular track

• Time taken = 4 minutes = 240 seconds

To find :

• Average speed

• Average velocity

Average speed = total distance / total time

Total distance = 2×3.14×50

Total distance = 314 metres

Average speed = 314/240

Average speed = 1.30 m/s

The average speed is equal to 1.30 m/s

Total Displacement = 0 metres (cyclist will return back to original place)

Average velocity = 0/240

Average velocity = 0 m/s

Average speed is 1.30 m/s and average velocity is 0 m/s