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What is the work done by static friction always dependent on?
The work done by static friction is always dependent on the displacement of the object it acts on.
Can workdone by friction be positive?
No, work done by friction is always negative because it opposes the direction of motion. Friction always acts in the opposite direction to the force causing the object to move, resulting in a loss of energy and a decrease in the total mechanical energy of the system.
Explain why the work done of sliding friction is negative when an object undergoes a dispalcement on a rough surface?
Sliding friction opposes the motion of the object, causing a loss of kinetic energy in the system. This lost energy transforms into heat and sound, resulting in a decrease in the mechanical energy of the object. As a result, the work done by sliding friction is negative since it acts in the direction opposite to the displacement of the object.
When is change in energy always negative?
A change in energy is always negative when an object loses energy, such as when work is done against friction or when heat is transferred away from the system. This results in a decrease in the object's total energy.
What is the formula for calculating the work done by friction?
The formula for calculating the work done by friction is: Work Force of friction x Distance.
What is the work done by static friction always dependent on?
The work done by static friction is always dependent on the displacement of the object it acts on.
What can be said about a situation in which work done is negative?
the formula F.S cos angle is used (the dot product) so if angle is 0,cos angle=1 hence work done is positive and maximum if angle is 90 so cos 90 is 0 hence work done is minimum if work done is negative the angle is 180 The work done by friction is always negative (opposite the force) Since work is force x displacement, a negative value for work could mean that the displacent was negative
Can workdone by friction be positive?
No, work done by friction is always negative because it opposes the direction of motion. Friction always acts in the opposite direction to the force causing the object to move, resulting in a loss of energy and a decrease in the total mechanical energy of the system.
Explain why the work done of sliding friction is negative when an object undergoes a dispalcement on a rough surface?
Sliding friction opposes the motion of the object, causing a loss of kinetic energy in the system. This lost energy transforms into heat and sound, resulting in a decrease in the mechanical energy of the object. As a result, the work done by sliding friction is negative since it acts in the direction opposite to the displacement of the object.
When is change in energy always negative?
A change in energy is always negative when an object loses energy, such as when work is done against friction or when heat is transferred away from the system. This results in a decrease in the object's total energy.
What is the formula for calculating the work done by friction?
The formula for calculating the work done by friction is: Work Force of friction x Distance.
Which two forces always do negative work?
Frictional force and tension in a string always do negative work because they act opposite to the direction of displacement of the object on which they act. This results in a loss of mechanical energy.
Does air friction do positive negative or zero work on your car when you are coasting?
negative work
Which direction does friction always work?
Friction's direction is always against the direction work is being applied to.
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.
Why friction is not a conservative force?
Friction is not a conservative force because it depends on the path taken by an object, not just its initial and final positions. The work done by friction is always negative and results in energy being dissipated as heat, making it non-conservative. Additionally, the force of friction is not only determined by the relative positions of objects, but also by factors such as surface roughness and the nature of the materials in contact.
