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Two particles A and B start from the origiųand travel in opposite directions along the circularpath of radius 5.0 m at constant speed of0.7 m/s and 1.5 m/s respectively. Determine the timewhen they collide and the magnitude of theacceleration of B just before this happens. |
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Answer» Answer: 14.3 sec Explanation: Total DISTANCE Covered = 2πR = 220/7 m Speed of A = 0.7 m/s Speed of B = 1.5 m/s Total Speed = 0.7 + 1.5 = 2.2 m/s Speed = Distance / Time => Time = Distance/Speed Time = (220/7)/(2.2) => Time = 100/7 sec => Time = 14.3 sec |
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