Which of the four fundamental forces acts over very long distances but does not cause planets in the solar system to pull on each other?
O A. Strong nuclear
O B. Weak nuclear
O C. Electromagnetic
O D. Gravitational

f=ma a/f/m a= 480/60 a = 8m/s/s that is quick wow

that would be because of both gravity and friction. so     c

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.