Question

answer this ............​

Answer 1

Answer:   [pi = π]

speed(v) =  10m/s

time(t) = 9 minutes = 9(60) seconds = 540 seconds

distance(s) = ?

$v =\frac{s}{t}\\\\s =v \times t\\s = 10 \times 540 \\s=5400m$

As the path is circular and the cyclist has completed 3 revolutions, distance covered by the cyclist will be 3 times circumference of the path.

∴ 3 × circumference = distance(s)

∴3 × 2πr = 5400

6πr = 5400

$pi \times r = \frac{5400}{6} \\\\pi \times r = 900\\\\r = \frac{900}{pi}$

Thus the radius of path is $\frac{900}{pi}$

Thus the answer is B

Step-by-step explanation: