A wheel, 14 centimetre in diameter, makes 3000 revolution per minute. Find its speed in metre per second.
Favaz003:
22 meter per second
1 revolution is equal to circumference
3000/60
50 revolution in 1 second
50 revolution is equal to 50 circumference
=50 × 2πr
= 50 × 2×22/7×7
=44 cm
×50
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Answered by
19
your answer is....
22 meter/second....
hope this helps..........
22 meter/second....
hope this helps..........
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Thank you very much!!!!
ur welcome
Answered by
1
3000 revolutions in 60 seconds (given)
=> 50 rev in 1 second
In each revolution, circumference covered = 2πr = 2 x 3.14 x 0.14 x 0.14 = 0.123088 metres
Speed = 50 x 0.123088
= 6.1544 m/s
=> 50 rev in 1 second
In each revolution, circumference covered = 2πr = 2 x 3.14 x 0.14 x 0.14 = 0.123088 metres
Speed = 50 x 0.123088
= 6.1544 m/s
Not 500
Thus the answer is 22
Anyway rated 5 star for attempting
yah ..... correct
3000 revolutions in 60 seconds (given)
=> 50 rev in 1 second
In each revolution, circumference covered = 2πr = 2 x 3.14 x 0.7 = 0.4396 metres
Speed = 50 x 0.4396
= 21.98 m/s
=> 50 rev in 1 second
In each revolution, circumference covered = 2πr = 2 x 3.14 x 0.7 = 0.4396 metres
Speed = 50 x 0.4396
= 21.98 m/s
Yes, sorry
I have corrected it
But can't edit the answer
Thanks for helping out
hmm...
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