Identify the increase in order of the angular velocities of the following
(A) earth rotating about its own axis
(b) hour's hand of a clock
(c) second's hand of a clock
(d) flywheel of radius 2 m making 300 rpm

Options

A. A,B,C,D
B. B,C,D,A
C. C,D,A,B
D. D,A,B,C

Answer

A

Explanation

`omega " "alpha (1)/(T)`
`{:((A) "for earth,",T,=,"24 hours"),((B)"for hours hand,",T,=,"12 hour"),((C)"for seconds hand,",T,=,"1 minute"),((D)"for flywheel,",T,=,300//60=5),(,,=,0.2 "second"):}`