Train A and train B are running on parallel tracks in the opposite directions with speeds of 36 km/hour and 72 km/hour

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Train A and train B are running on parallel tracks in the opposite directions with speeds of 36 km/hour and 72 km/hour, respectively. A person is walking in train A in the direction opposite to its motion with a speed of 1.8 km/ hour. Speed (in ms–1) of this person as observed from train B will be close to : (take the distance between the tracks as negligible)
16
Sep
Train A and train B are running on parallel tracks in the opposite directions with speeds of 36 km/hour and 72 km/hour, respectively. A person is walking in train A in the direction opposite to its motion with a speed of 1.8 km/ hour. Speed (in ms–1) of this person as observed from train B [...]
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Tags: A gas mixture consists of 3 moles of oxygen and 5 moles of argon at temperature t. Assuming the gases to be ideal and the oxygen bond to be rigid , the total internal energy of the mixture is , Train A and train B are running on parallel tracks in the opposite directions with speeds of 36 km/hour and 72 km/hour ,