- Created by: Jag.X
- Created on: 18-10-18 10:38
Newton's Second Law
- An object will not change its velocity (accelerate/decelerate) unless there is an unbalanced force acting on it.
- the acceleration/ deceleration depends on the size of the unbalanced force and the mass of the object.
- on a force diagram, an unbalanced force will be represented by unequal arrows
- unbalanced force = resultant force
3 Key Points:
- bigger force = greater acceleration/ deceleration
- bigger mass = smaller acceleration
- to get a big mass to accelerate as fast as a small mass, it needs a bigger force
F=MA (force = mass x acceleration)
- acceleration of an object = proportional to the resultant force of an object
- acceleration of an object is proportional to the mass of an object
- acceleration of an object increases if resultant force increases, and decreases if mass increases
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