length of a minute hand of a clock is 4.5 cm find average velocity of the tip of minute hand between 6am to 6.30 a.m and 6 a.m to 6.30 p.m
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Answer:
Between 6 am to 6:30 am
Average speed = Total distance/ Time
= πr / (30 × 60 seconds)
= 4π/1800
= 0.00698 cm/s
Average velocity = Total displacement/ Time
= 2r / (30 × 60 seconds)
= 9 / 1800
= 0.005 cm/s
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