Question

true or false Newtons's First Law states "Acceleration depends on the mass of the object and the unbalanced force applied"

Answer 1

False, his first law states: An object that's in motion will remain in motion at a constant velocity unless it's acted on by an unbalanced force.

Answer 2

The answer to your question would be False. Newton's First Law actually states "a body at rest (or in motion) will remain at rest (or in motion) until acted upon by an unbalance force."