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There is no limit as to how many forces can act on an object.
Mechanical Equilibrium is the state in which 2 or More forces act on an object , and cancel each other out. There has to be an even number of forces for them to cancel each other out. So no, a single force will not achieve mechanical equilibrium.
gravity and air resistance both act on a free falling object.
contact force
Then one force is overcoming another force, and the object moves.
No, lots of forces act on an object.
There is no limit as to how many forces can act on an object.
The force acting on an object "A" from outside is action force , and the reaction force is the force exerted by A to the outside object . Therefore, it is obvious that action force and the corresponding reaction force cannot act on one and the same body.
Yes
Is there an object with only one force, like gravity or air resistance ?? It is for me moving up to set 1 in science and i really need this ! Thank-you
no its not possible. if there is only one force acting on an object.
Mechanical Equilibrium is the state in which 2 or More forces act on an object , and cancel each other out. There has to be an even number of forces for them to cancel each other out. So no, a single force will not achieve mechanical equilibrium.
An object in free fall is one that has only the force of gravity acting upon it.
Under these circumstances, the object will be pulled/pushed in the direction the stronger force is acting. (The stronger force overcomes the weaker one.)
contact force
gravity and air resistance both act on a free falling object.
Then one force is overcoming another force, and the object moves.