Question

A racing cyclist practises by riding around a track.

A student wants to find the average speed of the cyclist Describe a method that the student could use to find the average speed.​

Answer 1

Answer:

The cyclist travels in a round track,

average speed = circumference of the track/ time taken

circumference = 2pi×r

r= radius of the track

Answer 2

Answer:

To calculate average speed divide the total distance traveled by the total time.

Explanation:

Step 1: To find the average speed of the cyclist divide the distance covered by time taken or add the initial and final velocities and divide them by two.

Step 2: Assume a cyclist covers 32 kilometres in the first two hours. The cyclist then goes 13 kilometres in the next hour. The cyclist's average speed is calculated by dividing the total distance by the total duration.

V = d / t

V = ( u + v ) / 2

V = Average velocity

d = Distance

t = Time

u = Initial velocity

v = Final velocity

Step 3: If you are provided with the time taken and distance covered use the first formula use the first formula. If you are provided with the initial and final velocities use the second formula.

Therefore, to find the average speed of the cyclist divide the distance covered by time taken or add the initial and final velocities and divide them by two.

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