Newton's Laws of Motion
- Created by: theninjaemu
- Created on: 23-11-16 13:59
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- Newton's laws of Motion
- First Law
- An object will remain at rest or continue to move with a constant velocity unless acted upon by a resultant force
- If an objects velocity changes, a resultant force must be acting on the object
- Velocity is a vector quantity
- A change in velocity means a change in speed
- A change in velocity means a change in direction
- Second Law
- The net force acting on an object is directly proportional to the rate of change of its momentum, and is in the same direction
- Force = change in momentum / time
- F=ma (special case)
- Force = change in momentum / time
- change in momentum = mv - mu
- mv-mu/t = m(v-u/t)
- v-u/t = acceleration (a)
- Therefore F=ma
- Third Law
- When 2 objects interact, they exert equal and opposite forces on eachother
- The forces acting are always the same type of force
- You never see both forces acting on the same object
- First Law
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