Physics P2 2.2

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Most objects around you are acted on by more than one force. We can work out the effect of the forces on an object by replacing them with a single force, the resulting force. This is a single force that has the same effect as all the forces acting on the object. 

When the resultant force on an object is zero, the object: 

  • remains stationary, or
  • continues to move at the same speed it was already moving.

When the resultant force on object is not zero:

  • the movement of the object depends on the size and direction of the resultant force. 

When a jet plane is taking off, the thrust force of…

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