Question

a wheel 14 cm diameter makes 3000 revolutions per minute .find its speed in m/sec

Answer 1

Here is your answer....

Distance covered in one revolution = Circumference of wheel
= 2r
= (2 * 22 * 7)/7
= 44 cm = 44/100 = 0.44m

Speed = (Distance covered) / Time Taken

Revolutions per minute = 3000 / 60 = 50 revolutions per second

Total distance covered in a second = 0.44 * 50 = 22 meter in a second

Therefore, the speed is 22 m/sec.

I hope it helps you ^_^