Question

a cyclist goes once round a circular track of diameter 105m in 5 minutes . calculate his speed

Answer 1

To calculate the speed, you have to make use of the formula and it gave diameter and speed

 Given:

 Diameter is 105 m

Radius: 52.5 m

 Circumference will be

 2x22=44

=44/7

= 6.2

=6.2 x52.5

 = 330 m

 Time is 5 min

=5x60- 3000 seconds

Formula:

 Speed=distance based on time =330/300

=1.1m/s

Answer 2

Answer:1.1 m/s

Explanation:

Diameter= 105m

Radius= 52.5m

Time= 5 minutes, 300 seconds

Speed equals distance upon time

52.5*2*$\pi$ *1/300

22/20

11/10

1.1m/s

Thank you