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Human vs Machines (Force (strength or energy as an attribute of physical…
Human vs Machines
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Contact force
Two objects must be in contact, example- pushing a shopping trolley
Non Contact force
Action in a distance, example- magnet
Balanced force
If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
Un balanced force
When balanced forces act on an object at rest, the object will not move. If you push against a wall, the wall pushes back with an equal but opposite force. Neither you nor the wall will move. Forces that cause a change in the motion of an object are unbalanced forces
Force Arrows
Force diagrams. We can show the forces acting on an object using a force diagram. In a force diagram, each force is shown as a force arrow. An arrow shows: ... the direction in which the force acts.
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