Tow people are throwing boxes off of a building and the boxes have different masses no mater what they will land at the same tie.
One of the two girls is holding one of the timescales and the other is pulling one, the act of the person pulling the timescale is having an opposite effect on the one stying still ,this is called a unbalencrd force.
When no force is being acted on an object it will stay at rest if a force is acting on an object it will move depending on the force this is a balanced force.
The velocity of the car is 100 PH in movement ,at the start it accelerated to 110 PH then it went to 100 PH after a few seconds.
The force of something agents an object will move.
The girl on the left is pushing 25n and the girl on the right is pushing 10n the girls are pushing against each other the force being used is unbalanced force.