potential energy in the rubber is translated as a (diminishing) force on the mass, causing acceleration
acceleration
(Mass) x (Acceleration)
All of them
Actually, the first one is completely independent on the second one. But the second one doesn't make any sense without the first one.
they both are always making time and is always in motion
acceleration
The clue is in the question.
yea
F = m a
Newton's second law of motion is when an object meets force it will accelerate.
Mass
His First Law and Second Law both do.
The link at the bottom will help you out, its a video
Acceleration is proportional to the force applied and inversely proportional to the mass
newtons second law of motion
(Mass) x (Acceleration)
All of them