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How do you find force when given a constant speed and force of friction?
Wiki User
∙ 11y ago
If the speed is constant, then the group of forces acting on the object is balanced.
So the portion of the force acting in the direction of the motion must be equal and
opposite to the force of friction.
Wiki User
∙ 11y ago
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A force of 320 N is required to pull a box across the floor at a constant velocity What is the force of friction between the floor and the box?
It's 320 N. Since the friction force is in the direction opposite to the motion, thepulling force and the friction force balance, the net horizontal force on the box iszero, and its speed is therefore constant.
What is the direction and magnitude of the net force acting on a rain drop falling down with constant speed?
If the raindrop is falling at a constant speed, then it has reached terminal velocity. This happens when the downward force (due to gravity) is the same as the upward force due to friction. As such the net force acting on the rain drop is 0.
Is there a net force acting on a moving race car?
The net force on the car acts on the line between the center of the car and the center of the circle. Its strength depends on the size of the circle and the speed of the car.
Why does placing wheels under a heavy box reduce the necessary force require to push it along at a constant speed?
rolling friction is less than sliding friction for the equivalent normal force
Is it possible for a book moving at a constant speed to have a change in velocity?
Yes, if an unbalanced force acts on the book, such as friction, which will slow the book down and eventually cause it to stop.
How do you compute the force of a given mass at a constant speed?
The force on a mass moving at a constant speed and direction is 0.
Does friction increase as speed decrease?
Relative to its surface, friction is constant (this is known as the friction constant). The speed is decreasing on an object because friction is acting on it over a period of time, not because friction is getting stronger.
When a lorry is moving at a constant speed what force on the lorry are balenced?
The forces are:Drag and Friction
How do you calculate HP need to keep constant speed?
It is equal to the retarding force due to 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.
A force of 320 N is required to pull a box across the floor at a constant velocity What is the force of friction between the floor and the box?
It's 320 N. Since the friction force is in the direction opposite to the motion, thepulling force and the friction force balance, the net horizontal force on the box iszero, and its speed is therefore constant.
How could you measure frictional force?
For dynamic friction, measure the force required to maintain a constant speed. If you have to pull with 300 N to maintain a constant speed, then friction is pulling back with 300 N. (If the forces were not balanced, there would be an acceleration.) For static friction, see how much force you need to apply before the object starts moving.
What are factors that can affect speed?
Thrust and friction in the environment. Ignoring friction, the two chief factors are the force of acceleration and mass, which determines how much force is required to achieve a given speed (more technically the change of velocity: speed in a given direction).
How does drag work?
Drag force, or the force of air friction for a falling body, increases with speed. A falling object will reach a speed at which the force of air friction will be equal to and opposite the force of gravity. At that point, the object will no longer accelerate. It's speed will remain constant, and we call that speed (and direction) its terminal velocity.
What are two factors that can affect speed?
Thrust and friction in the environment. Ignoring friction, the two chief factors are the force of acceleration and mass, which determines how much force is required to achieve a given speed (more technically the change of velocity: speed in a given direction).
What is an exapmle of a balanced force?
AN airplane traveling @ a constant speed. It's air friction is balanced by the applied force of it's engine.
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.
