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What else can I help you with?
Explain how frictional force is used to reduce the speed of a moving object?
Friction is a force that always acts in a direction opposite to that of motion. So the frictional force does negative work on the velocity of an object ( thus reducing the speed of an object).
What force allows work to be done?
Any force can produce work if it causes displacement. If displacement is in opposite direction of force, work done will be negative and if displacement is in direction of force work done will be positive. If there is no displacement, work done is zero. Eg: Gravitational force pulls you down towards earth, in pulling you down it does work on you which gets stored in form of potential energy. Energy for A+
What determines whether or not work is being done?
Work is done when a force is applied to an object and it causes the object to move in the direction of the force. Mathematically, work is calculated as the force applied multiplied by the distance the object moved in the direction of the force. If there is no movement or if the force is not in the same direction as the movement, then no work is being done.
How much work is done on a 40 N rock that won't move when pushed?
Work = (force) x (distance)Without motion, there is no work, no matter how great the force.
I lift a suitcase with a force of 60 newtons of 0.5 meters. How do you know whether work was done?
Work is defined as (force) times (distance). If the force is not zero, and the distance it moved through is not zero, then work was done. In other words, if you applied a force, and kept it going while the place you applied the force moved, then work was done. In this case, work = (60) x (0.5) = 30 newton-meters = 30 joules of work.
Which force do not work on the body on which it acts?
frictional force
How can one determine the work done by friction in a given scenario?
To determine the work done by friction in a scenario, you can calculate the force of friction acting on an object and multiply it by the distance the object moves in the direction of the frictional force. This will give you the work done by friction in that scenario.
How to calculate the work done by friction in a given system?
To calculate the work done by friction in a system, you can use the formula: Work Force of friction x Distance. First, determine the force of friction acting on the object. Then, multiply this force by the distance the object moves against the frictional force. This will give you the work done by friction in the system.
Can work be done by friction?
Yes, work can be done by friction. When an object moves against a surface due to friction, work is done to overcome the resistance offered by the frictional force. This work results in heat production and can cause the object to experience a change in its kinetic energy.
How do you determine a work done is positive sign or negative sign?
If work is done on the system then it has a negative sign. If work is done by the system then it has a positive sign.
How much work is done by the gravitational force when a 256 kg pile driver falls 2.80m?
work is not by the force . work is done by the body against or for the force. since work is force x displacement it will be 265x2.40 =636 N .and since work is done for the gravity work done will be -ve so it will be -636 N .
Why frictional force is known as non conservative force?
Frictional force is known as a non-conservative force because it depends on the path taken by an object and not just on the initial and final positions. Work done against friction to overcome it does not depend solely on the initial and final positions, making it non-conservative. Energy is dissipated as heat in overcoming friction, leading to a loss of mechanical energy.
How energy is scalar?
Energy could be considered as positive and negative. This is only algebraic sign and not directional sign. Suppose I drag a heavy load against frictional force on a floor. Whatever be the direction the work done will be always positive and hence energy used in doing so is also positive. Hence direction independent. So it is a scalar
Is work is always done when force is applied?
Work is only done when a force causes a displacement in the direction of the force. If the force is applied but there is no movement or displacement, then no work is done. Work is calculated as force multiplied by the distance moved in the direction of the force.
How do we know if work is done?
Work is done when a force is applied to an object and it causes the object to move in the direction of the force. The work done is equal to the force applied multiplied by the distance the object moves in the direction of the force. If there is no movement or the force is not in the direction of movement, then no work is done.
When is work not done on an object?
Work is not done on an object when there is no displacement of the object in the direction of the force applied. In other words, if the force and the displacement are perpendicular to each other, no work is done. Additionally, if there is no force acting on an object, no work is being done on it.
What is the only condition that work is done?
Work is done when a force is applied to an object and the object moves in the direction of the force. If there is no movement, no work is done, even if a force is applied.
