A particle moves uniformly in a circle of radius 10cm, covering a linear distance of 5cm in a time of 2.5seconds Find the time taken for 10 revolutions
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Time(t) taken for travelling 10 cm is 2.5 sec.
So speed=distance/time
=> s=0.05m/2.5sec
=>0.02m/s
Now for travelling 10 revolution=10cm×10rev
=100cm=1m
Again s=d/t
=>0.02=1/t
=>t=1/0.02
=50sec
Time taken for 10 rev is 50sec
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Answer:
314 s
Explanation:
v = 5/2.5 = 2 cm/s
Angular velocity = v/r = 2/10 = 1/5 rad/s Angular velocity = 2πn/t 1/5 =2πx10/t solving for time we get 100π = 100x3.14 =314 s
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