Greg and Karissa are about to start racing on their skateboards. Greg pushes off of the ground with 40 newtons of force. Karissa pushes off of the ground with 80 newtons of force. Greg and Karissa have the same mass. How will Greg's acceleration compare with Karissa's acceleration?

Greg's acceleration will decreace faster than Karissa will.

Explanation:

If Greg pushed off with less force and Karissa pushes off with more and they weigh the same Greg slows down before Karissa does. I hope this helped. :)

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.