Question

a wheel makes 294 revolutions per minute. if its speed is 21.56 m/sec find radius od wheel

Answer 1

Hey,
No. of revolutions =294
speed=21.56m/sec
21.56=distance/time
21.56=distance/60sec
distance =1293.6m
So, no. of revolutions =distance /circumference 294=1293.6/2πr
294=1293.6/44/7r
294=1293.6*7r/44
r=294*44/1293.6*7
r=70m.
Hope this helps you buddy!!
PLZ MARK AS BRAINLEST PLZ!!!!!!!!

Answer 2

Answer:

0.7m is the ans

Step-by-step explanation:

294 revolutions=60seconds

1 revolution =60/294 seconds

speed*time=distance

21.56*60/294=2πr

1293.6/294=2*22*r/7

1293.6*7/294*44=r

0.1*7=r

0.7m=r