1. Feb 24, 2016

Lim Y K

If a constant force acts on an object, does the acceleration changes or velocity changes?

2. Feb 24, 2016

A.T.

What does Newton's 2nd Law tell you?

3. Feb 24, 2016

ztdep

If you put a constant force on a object siting on the ground, it may not move because your force is not big enough.

4. Feb 24, 2016

Staff: Mentor

What if the net force is positive. What then?

5. Feb 24, 2016

olgerm

$\vec a = \frac{\vec F}{m}$
according to this formula (Newton´s II law) if sum of all forces (F) is constant and mass m is constant ,then also acceleration a is also constant.

since $v=\int (dt \cdot a(t))=\int (dt \cdot F(t))/m$ if F≠0 then velocity changes.