GarunixReborn t1_isl6dvp wrote on October 16, 2022 at 8:20 PM

Reply to comment by ExtonGuy in Do 2 objects on opposite "ends" of the universe pull on each other to some extremely minute degree? by Courcy6185

>M87 is pulling on you exactly as much as you pull on M87. The forces are equal and opposite

no, M87's gravity is much much stronger than that of a single human. They are anything but equal.

ExtonGuy t1_islave3 wrote on October 16, 2022 at 8:50 PM

The forces are equal. The responses to the forces are unequal.

GarunixReborn t1_islz49p wrote on October 16, 2022 at 11:46 PM

So why do you fall faster on earth than you would on the moon or mars? Do they themselves accelerate at 6m/s towards you?

ExtonGuy t1_isnzn9h wrote on October 17, 2022 at 12:26 PM

You fall faster on Earth because the force is 6 times more than on the Moon. They don't accelerate at 6 m/s^(2), because even thought they feel the same force you do, they are many billion of times more massive.

Acceleration = Force / Mass

On Earth, your acceleration is 9.81 m/s^(2). Earth's acceleration toward you is 8.21 x 10^(-23) m/s^(2).

GarunixReborn t1_ispnp90 wrote on October 17, 2022 at 7:39 PM

>You fall faster on Earth because the force is 6 times more than on the Moon.

So the forces are not equal then

ExtonGuy t1_ispy79c wrote on October 17, 2022 at 8:47 PM

The force of the MOON on you is not equal to the force of the EARTH on you, that much is true. But the force of the moon on you is equal to the force of you on the moon. For any two bodies X and Y, the gravitation force of X on Y is equal to the force of Y on X.