A wheel 14 cm in diameter makes 3000 revolutions per minute find its speed in meters per second
Answers
Step-by-step explanation:
Speed = (Distance covered) / Time Taken
Revolutions per minute = 3000 / 60 = 50 revolutions per second
Distance covered in one revolution = Circumference of wheel
= 2 \pi r
= (2 * 22 * 7)/7
= 44 cm = 44/100 = 0.44m
Total distance covered in a second = 0.44 * 50 = 22 meter in a second
so the speed is 22 m/sec
Step-by-step explanation:
As we know that the formula of average speed is
Total distance covered/Total time taken
Revolution of wheel=3000/minute
So we can convert 3000/minute into
second by dividing with 60
=(3000/60)m/sec
=50 m/sec
The distance covered by wheel in one revolution=The circumference of wheel
Formula of circumference is
π×diameter=2π×radius
circumference=2πradius
=(2*22*7)/7
=44cm=44/100=0.44meter
=Total distance covered in a second by wheel=0.44×100=22 metre/second
Answer:
distance in one rev=2 πr
= 2x22x14/7=44x2=88cm
for 3000 rev=88x3000 = 264OO0cm
264000 cm/min
=2640m/min
= 2640m. in 1m
=2640m/60=44m/sec. Ans