Question

3. If a man runs around a circular field at a speed of 11 m/s and the radius of the field is 56 m, then how much time does the man take to complete 5 rounds?​

Please don't copy answer from go0le

Answer 1

Step-by-step explanation:

160 second

11 = 2 × 22/7 × 56/ T

= 252 /11

= 32

= 32 × 5 = 160 seconds...

Answer 2

Step-by-step explanation:

Speed = 11m/s

Radius = 56m

Distance travelled in one round = 2πr

= 2π×56

= 112π

Distance travelled in 5 rounds = 112π×5 = 560π m

Time = Distance/Speed

= 560π/11

$\displaystyle = \dfrac{ \cancel{560} \times \dfrac{22}{ \cancel7} }{11} = \frac{80 \times 22}{11} = \frac{1760}{11}\\\\\\ \displaystyle= 160seconds.$

= 2minutes 39seconds.