Question

A wheel 14cm in diameter makes 3000 revolutions per minute find its speed in m/sec how answer is m/s

Answer 1

distance travelled to covered 3000 revolutions =pid
=3000x 22x0.14/7[since d is in cm, convert to metre
=1320m
speed = 1320/60 m/s
speed =22m/s
[m/sec or m/s mean metre per second ]