Newton's second law

i don't understand what our phy teacher said today
Can anyone explain the law in detail?
if you do, i will appreciate it very much

Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

Force=Mass *acceleration

watermoon wrote:

Force=Mass *acceleration

The greater the mass, the small acceleration it is
It is not too difficult
All Oil ar~