Question

A cyclist goes around a circular track of diameter 105meters in 5minutes.Calculate his speed

Answer 1

Answer:

Here, diameter = 105m , radius (r) = 105 / 2

Time taken t = 5 × 60 = 300s

Speed , V = 2πr / t

= 2 × 22 / 7 × 105 / 2 × 300 = 1.10 m/s .

hope it helps you dear .....

Answer 2

105 m = 105/1000 km

5 min = 5/60 hr

Speed = distance / time

$\frac{ \frac{105}{1000} }{ \frac{5}{60} } = \frac{105 \times 60}{1000 \times 5} = 1.26$