What if Jupiter collided with earth?

Answer 1

If Jupiter hit the sun, there would be phenomenal release of energy. The energy is equivalent to 1/2 mv2 so since the mass of Jupiter is 1.89x1027 kg and the escape velocity of the sun (and thus the approximate speed of impact) is 617 km/s (6.17x105 m/s). Thus, the energy released would be 3.60x1038 J. At that speed, the collision would take about 4 minutes from the moment of the first contact to the moment all of Jupiter is at the surface of the sun. This would be around 1.5e36 W on average, or about 4 billiontimes brighter than the sun normally is. On Earth, areas in direct sunlight would receive 20 petajoules/m2 over that time period. By comparison, a 1 megaton nuclear bomb at 10 m (across the room) only releases 3.3 gigajoules/m2, less than 1/1000 of what this event would generate. Needless to say, nobody on the day side of Earth would survive, and the blast wave and earthquake would kill everyone on the night side.

As for the sun itself, it would brighten considerably for a few years before returning to normal.

Answer 2

if the planet is large enough and the acceleration is fast enough, we will be hit into small pieces.

but if the planet is very small, our atmosphere will dissolve it and turn it into ash!

Answer 3

Then Earth would probably be one of Jupiter's moons.

Answer 4

If the Sun and Jupiter crashed the Sun and Jupiter would mix together. The heat of the Sun would ignite much of Jupiters gasses and there would be a lot of disruptive activity.

Answer 5

No. The orbits of the planets are stable and far from one another. There is no danger of any of them colliding.

Answer 6

You would be dead.