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3. What is common to the following?
Motion of the propeller of a flying
helicopter, the minute hand of a watch,
the tape of a cassette recorder.
act: both
examples of
translatory motion
b) All are examples of oscillatory
motion
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a) All
are
c) All are examples of rotatory
motion
d) All are examples of periodic
motion
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Motion of the propeller of a flying helicopter, the minute hand of a watch, the tape of a cassette recorder - are all examples of periodic motion which is d.
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