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A ball is thrown up in the sky, at what position will the instantaneous speed be minimum?(a) Initial position(b) Final position(c) Halfway through the whole trajectory(d) After covering one fourth of the whole trajectoryThis question was addressed to me during an interview.Question is taken from Straight Line Motion topic in division Motion in a Straight Line of Physics – Class 11

Answer»

The correct choice is (c) Halfway through the whole trajectory

To explain: When the BALL rises up, there will be a point where it will be in the state of INSTANTANEOUS rest. At the this position the speed of the ball will be 0. Speed is maximum at the INITIAL and final points.



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