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by Michael M. |
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Sir Isaac Newton created three laws of motion. The first law states that every object will remain at rest or in motion in a straight line until acted on by an outside force. This is also known as inertia. If no net force is present because of unbalanced forces acting on an object, then the object will maintain a constant velocity. If the velocity of the object is zero then it is at rest. If a force acts on the object and pushes it right or left then the object will change its velocity thus moving the object because of the force. Inertia is the rluctance of any body to change its state of motion. Mass is a measure of inertia. Equilibrium is a state of balance in which no net force acts on an object. |
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| Nasa Picture showing a ball at rest while forces are present | ||||||||||
| Since a golf ball sitting on a tee has no velocity or forces acting upon it means it is at rest. The ball is going to stay at rest until acted by another force. Suppose I hit the ball with a driver, the ball will change its velocity and be in motion. In peck's perfect world the ball would stay on a lined path forever. In the real world we have to incorporate a lot of forces including a two major forces, gravity and friction. Gravity will eventually bring the ball back down to Earth and friction with its minor imperfections will eventually stop the ball from rolling. | ||||||||||
