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what will be approximate change in velocity by the tip of seconds hand of wall clock in 10s if length of the hand is 10cm

what will be approximate change in velocity by the tip of seconds hand of wall clock in 10s if length of the hand is 10cm

Grade:11

1 Answers

aman
11 Points
6 years ago
v = wr [ where w is angular velocity and r is length of second hand]
and w = 2\pi/T [ where T is time period of second hand which is 60 mins so there for
w =\pi/30
so v =\pi/30 × 10/100 =  \pi/300 m/s
now \Deltav =\sqrt{}v2 + v2 _2v2cos60   =   \pi/300 m/s

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