Resultant forces
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6 Terms
Resultant force
a single force that has the same effect as all the other forces acting on an object
How to draw a free-body diagram?
Draw all forces from the centre of the object
How to find the FR?
If single forces, subtract adjacent forces
If multiple, add forces in the same direction and subtract from forces on the other direction
Newton’s first law
If forces acting on an object are balanced, the resultant force is 0
if the object is at rest, it remains stationary
if it is moving, it will continue moving at the same speed in the same direction
Resultant force can…
Start motion
Stop motion
Speed up motion
Slow down motion
Change direction
Change shape
What is the effect of a resultant force called?
acceleration
Note 
Flashcards (24)