An object accelerates(changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, all of the following objects will accelaerate EXCEPT?

Answer 1

You did not list the "following objects"

Correction: Acceleration is a change is velocity, not speed. An object traveling a circular path at constant speed is accelerating by changing its direction.

Answer 2

Im having trouble writng my lab report its on Density of Solid objects and I don't know where to start!

Answer 3

If you did not attend the lab and perform the required experiments, and take notes and measurements, we can't help you. If you have a specific question that involves measurements you actually made, please left us know.