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When an object is travelling on the rough surface frictional force is equal to ma?
Arunkumarpuvvada
its a force , deduct it from driving force
Wiki User
∙ 12y ago
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If the friction equals the force why the object moves. why it doesn't stop?
Friction force is equal to the force applied only when the object is not moving or it is just beginning to slide. Once the object has started motion completely, it means that the force applied has exceeded the frictional force
Do force exist to object at rest?
There CAN be, as long as the force is being counterd by an equal and opposite force.
The friction force that acts on objects that are at rest is?
If an object is stationary on a surface then the forces acting on it are the Gravitational force and the Normal force(the force of the surface pushing back against the object). Technically you could be pulling(or pushing) that object from opposite directions with equal forces and it would remain stationary. The important thing to understand is that a stationary object remains stationary so long as the net forces applied to it equal zero.
What forces have to be balanced for terminal velocity to be reached by an object?
For an object in freefall, terminal velocity is reached when the drag force becomes equal and opposite to the force of gravity. This creates a net force of 0, resulting in no further acceleration.
Does an object always move in the direction of the unbalanced force exerted on it by another object?
Not always, the unbalanced force only points in the direction of the acceleration so a body may be moving in the opposite direction. Example. A car moves with some speed to the right on a horizontal surface and lock the brakes, if the surface has friction, but the net force acting on it is equal to the frictional force pointing left and produces a Deceleration of carriage until stop, but while this happens continuously in motion to the right.
Why does it take time for friction to become equal to the force?
Because the object is still in motion. When the frictional force is equal to the other force, then the object will be stopped completely.
What things can cause friction to loose its force?
The resistance to movement between 2 surfaces which touch each other, is referred to as frictional force. This frictional force will be reduced if any or all of the following things happen. 1. Make the surfaces rough and things will not slide over each other so easily because the frictional force will be greater. 2. Choose a different material for the surface, which has a very slippery nature. 3. Choose a more slippery surface on the moving surface of the object. The ' slipperiness' of the materials is referred to as the 'co-efficient of friction'. The force needed to overcome the grip of friction, is always a fraction of the weight of the object but in rare circumstances with rough surfaces, the grip of the frictional force can be equal to the the weight of the sliding object. If a slope is equal to, or steeper than 45 degrees, then the object will always slide down this incline without any need to push it.
If an object is placed on a flat surface the what is straight up and is equal to the weight of the object?
inertia
What is the relationship of the starting friction to the static friction between two objects?
When an object is at rest on a particular surface, the frictional force keeping it from sliding in any given direction is known as static friction; the magnitude of this force is always less than or equal to the product of those surfaces' static friction coefficient and the component of the gravitational force (weight) of the object perpendicular to the plane of the surface, the latter of which is equal to the normal force that is exerted by the intermolecular bonds in the surface material, upward and perpendicular to the plane of the surface itself. (In other words, Fs ≤ µsFn, where Fs=force of static friction, µs=static friction coefficient, Fn=normal force of surface upon object.)
Can a coefficient of friction be equal to zero?
No , coefficient of friction can not be zero. if it is zero then there will be no frictional force between two bodies.And in our universe these types of object didnot exit.
If the friction equals the force why the object moves. why it doesn't stop?
Friction force is equal to the force applied only when the object is not moving or it is just beginning to slide. Once the object has started motion completely, it means that the force applied has exceeded the frictional force
Are you agree that your weight is equivalent to the friction force. Why?
No. On a horizontal surface the normal force is equal to weight. If you are moving at constant velocity you only overcome frictional force, which is not equal to weight. This is easier to see on an incline. At some point an object will slide at constant velocity down the incline. This is related to trig functions of the angle of incline multiplied by the weight which is always less than the weight.
What is the number of unit squares equal to the surface of an object?
area/(unit^2)= # of units
How does friction make you stop on ice?
Newton's first law states that a body in motion will remain in that same motion unless acted upon by a force. If a mass is sliding on the ice it exerts a force down upon the ice. There is a frictional force is the one that acts to slow the mass down, and it is equal to a coefficient of the frictional surfaces X the downward force upon the surface. While ice, especially smooth ice will contribute to a small coefficient of friction as opposed to concrete or wood the effect is there. This frictional force of ice exists and will act to slow down the object. The heavier the object the faster it will be able to be slowed down. And the substance of the object contributes to the coefficient too. All according to the laws of Newton. It should also be mentioned that the coefficient of friction between the ice and the object depends of lots of things besides the smooth ice, such as the material that is moving the ice, the temperature of both ice and the moving object, any surface films such as water or oil etc.
When an object is pulled on a level surface at a constant velocity what force is the pulling force equal to?
If there is no friction or anything that can impede the movement off the object, then the force is zero. If there is friction, then the force is equal to that of the friction.
A box is dragged without acceleration in a straight line across a level surface by a force of 13N what is the frictional force between the box and the surface?
13N. if a=0, the sum of all forces is zero so the force of friction is equal and opposite to the dragging force.
When an object is pulling across a level surface at a constant velocity what force is the pulling force equal to?
Friction.
