Newton's+2nd+Law+of+Motion

F=m x a, where F is force, m is mass and a is acceleration.

To find out what amount of force must be applied, you have to multiply the acceleration by the mass of the object. In this case, you would multiply 1,000 by 5, which equals 5,000. Then the mass of the object would be 1,000 kg, the acceleration would be 5 m s/s, and the force that had to be applied would be 5,000 N (Newtons).



In the first example, the people are applying an equal amount of force. Because of this, they would not move. You can pushing against a wall, and nothing will happen. The wall is applying an equal amount of force against you as you are to it. Also, the two people could lean against each other and they would balance. They have an equal mass as well as an equal acceleration. If they came running at each other at the same speed, they would bounce of each other equally far.

The second example shows that one person is applying more force than the other. This person would probably knock over the first. One of the people is applying more force because he has more acceleration. If the two ran at each other now, the one with less acceleration would be knocked over.