Question
On a circular path of 693 m, Sujata and Anjali start
walking from the same point but in opposite directions at speeds of 2.85 km/h and 1.5 m/sec, respectively. When they will meet for the first time?Solution
2.85 km/hr = 2.85 x (5/18) =0.79 m/s Relative speed = 0.79 + 1.5 = 2.29 m/s Time = Distance/relative speed Time 693/2.29 Time = 302.62 seconds Time = 5.04 minutes They will meet for the first time after 5.04 minutes.
Which of the following does not form part of excretory system in insects?Â
The Cosmopolite channels are the one which originate outside a particular social system, Examples of this channel includes
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