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Zeta1

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  • An easy one -- speed of butterflies?

    General Hardnose is watching a tank moving at speed s from right to left in front of him.

    A butterfly called Grumpy rests on top of the track.

    Another butterfly called Sneezy rests on the bottom track.

    What is speed of butterfly Grumpy relative to the ground?

    What is speed of butterfly Sneezy relative to the ground?

    2 AnswersPhysics1 decade ago