Question

An object is moving in a circle of radius 100 m with a constant
speed of 3.14 m/s. What is the average speed for one complete
revolution ?​

Answer 1

$\large{\underline{\underline{Given:}}}}$

$radius = 100m \\ speed \: or \: velocity = 3.14 \frac{m}{s}$

$\large{\underline{\underline{To find:}}}}$

Average speed

__________________________

If radius is 100m,

then Circumference =2πr

=2*3.14*100

=3.14*200

$\huge{{Average speed =Total\:distance\:covered /Time\: taken}}}$

We know that,

Time taken = Distance covered /speed

Therefore,

2πr/Distance/speed=Average speed

=>3.14*200/3.14*200/3.14=Average speed

=3.14m/s

Hence, the average speed for one complete revolution is 3.14m/s.