what if everyone in the whole entire world jumped at once?

Question

would the ground shake would it lose its orbit??

Answer 1

NOW SEE IF GOIN BY THE CONVENTION THAT EVERY ACTION HAS AN EQUAL AND OPPOSITE REACTION.THE EARTH SHUD SHAKE A BIT BUT THEN AGAIN we r very minute percent of its mass. but still if we let the horses of our imagination loose then think that the earth is round; a sphere .so the actions wud be cancelled out....thats wen the population is evenly distributed

Answer 2

There was an experiment in Britain in which over a million people jumped up and down at the same time, and they did manage to generate a small amount of seismic activity, so if everyone in the world jumped at once, the Earth will not lose its orbit, because the Earth is too massive, but the ground will indeed shake.

Answer 3

Well just for fun let's plug some numbers into this:
The Earth's mass is 5.936*10^24 Kg
The world population right now is approximately 6.631*10^9 people.
And just as a ball park number, lets assume the average person weighs 60 kg.

If everyone was equally scattered all around the planet and jumped, than the force of everyone jumping would couter act each other, and nothing would happen. But what if everyone were to jump in the same area...

To jump into the air you have to exert a force on the ground which exceeds the force of gravity. Again, lets just pick a number, say an acceleration of 10.5 m/s^2 (remember, gravity is 9.8m/s^2)

So that would be a force applied of 4.17753*10^12 Newtons (if every person jumped in the same way at the same time on the exact same spot on earth).

Lets call that a possible applied impulse of 4.17753*10^10 Newton*seconds

If we take that number and divide it by the mass of the earth, we'll get the amount of velocity change to the earth:

7.0376*10^-15 m/s
Or:
0.0000000000000070376 m/s


So even if you could somehow collect every person on the planet to the exact same spot on the earth, and get every single one of them to jump up at the same time. The amount of force applied to the earth would result in such a negligable shift, it might as well be zero.

Answer 4

if people from all over the world jumped at once,the earth wont shake because when people in one part of the world jump and push the earth down,the people in the other part of the world jump and nullify the effect.
for instance when people in the north hemisphere jump and push the earth down the people in the south hemisphere whould be jumping in the opposite direction.

Answer 5

No, but if you got everyone in the world to jump at once.... that would be a miracle of planning and execution.

Answer 6

Good golly gosh making us thnk on a sat morning, I dont know the answer I am sorry, I would like to think it kinda would shake, you would think it would cause some kind of tramua. Will look out for the answers on this one.

Answer 7

no, everyone would look pretty stupid. Every person on the earth isn't but a miniscule fraction of the mass of the earth.