Question

the minute hand of a clock is 7 cm long.find the distance and displacement travelled by the tip of minute hand:
(a). in 2 hours and 45 minutes
(b). b/w 9.00 pm to 2.15 am​

Answer 1

Length of minute hand r=4 cm

In 30 minutes, the tip of minute hand reaches diametrically opposite end of the clock.

Thus displacement of tip of minute hand d=2r=8 cm

Time taken t=30 min=30×60=1800 s

So, average velocity v

avg

=

t

d

=

1800

8 cm

=0.0044 cm/s

Explanation:

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