Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time On other days, if she remains stationary on the moving escalator, then the escalator takes her up in time The time taken by her to walk upon the moving escalator will be:
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Two cars P and Q start from a point at the same time in a straight line and their positions are represented by and . At what time do the cars have the same velocity?
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If the velocity of a particle is , where A and B are constants, then the distance travelled by it between 1s and 2s is?
If the velocity of a particle is where and are constants, then the distance travelled by it between and is:
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