If a force is applied in the same direction of an objects motion, the speed will: if a force is applied in the opposition direction of an objects motion, the speed will:

The action from a force  can  cause an  object  to move or  speed  up (accelerate),a force is applied in the same direction, the  object will speed  up or accelerate. if  an  object  is moving and there is an applied force in the  opposite  same  speed,  if  the  force is applied  perpendicular to the  direction  ofmotion.

A. they hold atoms  together with a molecule.its a force that exist between molecules. hope this .

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