If there is zero net force, then any force acting upon the object is countered by a force equal in magnitude, and opposite in direction.
For instance, an object on a level plane has zero net force, as it is being pushed down by gravity, at a rate of 9.8 meters per second per second [(m/s)/s], and is being pushed back up by the plane at the same rate.
If you were to add a breeze from the north that impacted and created a force that was the mass of the object times 2 (m/s)/s, and yet the object still did not move, that means that there is still zero net force, as friction is now pushing north at the exact same rate as the wind is pushing south.
The forces are in opposing directions. For example, a car moving on a freeway at
a constant speed applying a certain force forward has a net force of zero because
the force of air friction is equal to the forward force. If the car was accelerating or
braking, the net force would not be zero. Another example: for an object in free
fall at terminal velocity (not accelerating), the force of gravity downwards equals
the force of air resistance upwards. The two forces cancel out and the result is
an even zero.
Another example, easier to grasp . . .
A collegiate tug-of-war. Several members of the football team pulling one end of
the rope north, and the entire Cheerleading squad pulling the other end of the
rope south. The little hankie dangling from the center of the rope is not moving
at all, because the north force and the south force are exactly equal and they
add up to zero. The net external force on the rope is zero, and although there's
some killer tension in it, the rope as a whole remains at rest.
When the forces working on an object cancel each other out (i.e. the net force is 0 N) the acceleration of the object is also zero IF you are in an inertial (i.e. non-accelerating) reference frame. This follows from Newton's First Law (and, incidentally, also his second).
If you are not in a inertial frame objects may appear to accelerate without any discernible cause. An example would be if you were standing in a carousel and threw a ball away. The trajectory of the ball would suffer from fictitious forces such as the Coriolis force.
It means
-- the vector sum of all individual forces on it is zero;
-- the effect of all the forces is the same as if there were no forces acting on it;
-- the forces on the object are said to be 'balanced'.
Examples:
-- 30 tough guys pulling on one end of a rope, 30 other tough guys pulling
in the opposite direction on the other end of the rope, and the rope going
nowhere;
-- two little girls pulling hard on the same doll, and the doll not moving;
-- two strong shoppers pulling hard in opposite directions on the same
shopping cart, and not moving it.
the net force acting on an object is zero. what is it
Yes. Net Force = mass * acceleration. If net force = 0, then mass * acceleration = 0. Since mass can't equal 0, acceleration must be 0.
Yes it can. That means the force is balanced and it will not move if at rest and not change velocity if in motion (since there is no acceleration).
With a net force of zero, the object will not accelerate - in other words, it will remain at rest.
The object is not accelerating.
-- When the net force on an object is not zero, the object undergoes accelerated motion.-- The magnitude of the acceleration is the ratio of the net force to the object's mass.-- The direction of the acceleration is the same as the direction of the net force.
If the net force is not zero then the object will move in the direction of the greater force.
Zero.
In that case, the net force on the object is zero.
0. An object in equilibrium has constant velocity, which makes its acceleration 0. Since net force=mass times acceleration, this would make the net force zero. Note that there could be multiple forces acting on the object, but since it is in equilibrium they would have to be equal and opposite in direction, to cancel all of the forces out. This would make the net force zero.
If the net forces acting on an object amount to zero, that object is at rest.
when the net force of an object is at zero, it is at rest. That means that the forces on it are balanced. when the net force is not zero, the forces are unbalanced.
you can say that there is no net force on the object; that is, the net force is zero
The net force on such an object is zero.
Zero
Since force is a function of acceleration and an object at rest has zero acceleration, then then net force is zero as well.
Then there will be no acceleration of the object.