Question

Find distance and displacement of the minute hand of a clock from 9am to 9.30am , if length of the minute hand is 2cm​

Answer 1

Answer:

Distance covered = 44 cm

Displacement = 28 cm

Explanation:

Length of minute hand of clock = 14 cm

From 10 AM to 10:30 AM, the minute hand will complete one half circle

The radius R of this circle will be the length of the minute clock

Therefore, the distance covered

=\pi\times R=π×R

=\frac{22}{7}\times 14=

7

22

×14

=44=44 cm

From 10 AM to 10:30 AM, the displacement of the tip of the minute hand will be twice the length of the minute hand

Hence, displacement

=2R=2R

=2\times 14=2×14

=28=28 cm

Explanation:

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