What is the recoil speed of earth?

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What is the recoil speed of earth?

In principle, anytime someone jumps up, the earth moves in the opposite direction. To see why we are unaware of this motion, calculate the recoil speed of the earth when a 77.0 kg person jumps upward at a speed of 2.30 m/s .
*If anyone has any clue how to do this please let me know*
THANKS GUYS!!! :)

2006-10-12 17:31:07 · 2 answers · asked by cheezo12 1 in Science & Mathematics ➔ Physics

2 answers

Conservation of momentum tells you that m1v1 = m2v2, with v1 and v2 in opposite directions.

2006-10-12 17:36:31 · answer #1 · answered by injanier 7 · 0⤊ 0⤋

Approx 2.95140471 e -23 (0.0000000000000000000000295140471 m/s)

2006-10-12 18:00:55 · answer #2 · answered by S--slick 4 · 0⤊ 0⤋