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2 identical particles each of mass 4 kg are placed together at the ge of a tall cliff and joined by a string of negligible mass one of the particles is projected with a speed of 10*3^1/2m/s at 60 degree above the horizontal.the string becomes taut after 2 seconds assume g=10m/s^2.whatis the length of the string and what is the speed with which the second particle starts moving and what is the tention when the second particle starts moving?also find the time when the string becomes horizontal for the first time after projection?(answers 20m,2.5m/s,7.5N,3.2s)
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Moderation Team
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