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Two parallel rail tracks run north-south. Train A moves north with a speed of 72 Kmh -1 and train B moves south with a speed of 90 Kmh -1 . What is the(a) Velocity of B with respect to A ? (b) velocity of ground with respect to B ? (c) Velocity of monkey running on the roof of the train A against its motion( with a velocity of 28 Kmh -1 with respect to train A) as observed by a man standing on the ground. |
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Answer» Answer: (a)_ -18 km\h (b)_ -90km\h (c)_. -44km\h
Step-by-step EXPLANATION: (a). if TWO bodies A and B are TRAVLING with velocity v and U. then, velocity of A with respect to B = velocity of B with respect A = - | v-u | (b). ground is at rest so, velocity of ground with repect to B = actual velocity of B with respect to ground. (c). again like first answer ............ -|v-u| |
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