What is the speed of seconds hand of your watch whose radius is 1.5 cm
Asked by itishreepanda999
| 31st May, 2018,
09:07: PM
Expert Answer:
We know ,
Distance =Speed × time
Thus for watch,
Time = circumference / speed
Time taken for revolution is =1 minute= 60 seconds
r= 1.5 cm =0.015m
circumference = 2πr= 2×3.14×(0.015)
Therefore,
Answered by Shiwani Sawant
| 5th Jun, 2018,
11:11: AM
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