Question

A wheel turns through 50 rotations per minute.
a) How many revolutions does it make in an hour?
b) How many degrees does it turn through in one second?

Answer 1

Answer:

a)3000

b)8.3 degrees

Explanation:

a) rotation per minute = 50

  minutes per hr         = 60

  rotation per hr          = 50 x 60

                                    =3000

b) rotation per minute = 50

  seconds per minute = 60

  one rotation              =360 degree

  degrees per second =50 x 60/360

                                      =8.3 degrees

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