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What magnitude pushing force is needed to keep a box moving at a constant 8 meter per sec if there is a static friction of 5 lb and kinetic friction of 4 lb?
Wiki User
∙ 11y ago
While the box is moving in a straight line at a constant speed, the push only has to
overcome the kinetic friction.
Whatever the speed is, and whatever the weight of the box is, 4 pounds of push
IN THE DIRECTION THE BOX IS MOVING will keep this one going.
Wiki User
∙ 11y ago
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What factors influence frictional force?
Friction is a force acting in opposition to the net force on an object. As such it will always take on the same magnitude and the opposite direction to the net force, constantly adjusting itself - up to a certain maximum. The maximum force that friction can exert to impede motion is determined by two factors: * the coefficient of friction; a constant assigned to the specific combination of the two surfaces in contact. * the normal reaction force; the force pushing the surfaces together. Multiplying these two together gives friction's maximum value. If an object is already moving, friction continues to exert the maximum force that it can, and a slightly adjusted 'kinetic friction coefficient' is used to determine its magnitude. Friction coefficients can be slightly affected in turn by further factors, such as temperature.
What is the kinetic?
The theory that states that all atoms are constantly moving
What happens to the forces of an object when it reaches a constant speed?
An object maintains a constant velocity when the net force acting upon that object is zero. Therefore, a force pushing against the object that exactly opposes the force(s) due to friction (in both magnitude and direction) will result in a net force of zero, and the object will maintain a constant speed.
When you are pushing on a large door friction keeps you from sliding backwards?
static friction
What causes a box you are pushing across the floor to stop when to stop pushing?
Static Friction
How is an able to maintain a constant speed when friction acts upon it?
An object maintains a constant velocity when the net force acting upon that object is zero. Therefore, a force pushing against the object that exactly opposes the force(s) due to friction (in both magnitude and direction) will result in a net force of zero, and the object will maintain a constant speed.
What factors influence frictional force?
Friction is a force acting in opposition to the net force on an object. As such it will always take on the same magnitude and the opposite direction to the net force, constantly adjusting itself - up to a certain maximum. The maximum force that friction can exert to impede motion is determined by two factors: * the coefficient of friction; a constant assigned to the specific combination of the two surfaces in contact. * the normal reaction force; the force pushing the surfaces together. Multiplying these two together gives friction's maximum value. If an object is already moving, friction continues to exert the maximum force that it can, and a slightly adjusted 'kinetic friction coefficient' is used to determine its magnitude. Friction coefficients can be slightly affected in turn by further factors, such as temperature.
What is the kinetic?
The theory that states that all atoms are constantly moving
What happens to the forces of an object when it reaches a constant speed?
An object maintains a constant velocity when the net force acting upon that object is zero. Therefore, a force pushing against the object that exactly opposes the force(s) due to friction (in both magnitude and direction) will result in a net force of zero, and the object will maintain a constant speed.
What is the net force acting if an object is moving along a surface with a constant acceleration?
If the object is moving along a horizontal surface with a constant acceleration,then the net vertical force on it is zero, and the net horizontal force on it is(the pushing force) minus (any kinetic friction force where it rubs the surface).The numerical value of that net force is(the acceleration) times (the object's mass).
When you are pushing on a large door friction keeps you from sliding backwards?
static friction
When pushing a coin on a surface does that create friction?
Yes. Friction is the resistance between an object and the surface in which it is. When pushing the coin, an opposite force is pushing it the other way, because the forcce you apply to the coin is greater it moves but that doesn´t mean there is no friction.
When do gravity get weaker?
when friction is pushing against it
What does an engineer call a pushing force?
kinetic energy?
What causes a box you are pushing across the floor to stop when you stop pushing?
Static Friction
What causes a box you are pushing across the floor to stop when to stop pushing?
Static Friction
What is the effect of force on friction?
The amount of friction depends on the force pushing the surfaces together.
