Work, in physics, is defined as the dot product of a Force times displacement. The dot product just means that Work is not a vector quantity.
Vectors have magnitude and direction. Work has only magnitude, like energy, and no defined direction. In physics, quantities with no direction are called scalar quantities.
Here is the equation for Work:
w = F * d
or, work equals Force dot (times) Displacement.
If I push hard on a large building with all the Force I can muster, let us say 100 pounds of force, and if the building refuses to move (the building has not been displaced), then the work done is zero.
We can see from the equation above, and the example, that if the object we apply a force to does not move, then it is just some quantity times zero.
So despite how hard one has tried to move an object with all the force that can be mustered, if the object does not move as a result, no work has been done. It does not matter how tired I am from pushing hard.
Physically speaking, no work got done.
Yes, if no force is applied. Work = force x distance, so if the force is zero, no work is done.Yes, if no force is applied. Work = force x distance, so if the force is zero, no work is done.Yes, if no force is applied. Work = force x distance, so if the force is zero, no work is done.Yes, if no force is applied. Work = force x distance, so if the force is zero, no work is done.
Work done by a force is zero when the force is applied perpendicular to the direction of motion of the object. Another scenario is when the force is applied but there is no displacement of the object.
The centripetal force always acts perpendicular to the displacement of the object moving in a circular path. Since the work done is the product of force and displacement in the direction of force, and the displacement is perpendicular to the centripetal force, the work done by the centripetal force over a full rotation is zero.
If the angle between the force and the direction of motion of a body is 90 degrees (perpendicular), then the work done is zero. This is because the component of force in the direction of motion is zero, resulting in no work being done on the object.
The work done by a centripetal force is zero because the force is always directed towards the center of the circular motion, while the displacement is perpendicular to the force. This means that the angle between the force and the displacement is 90 degrees, resulting in zero work being done.
Work Done = Force x Displacement, so if the displacement is zero, the work done will be zero. There will be no work done.
Yes, if no force is applied. Work = force x distance, so if the force is zero, no work is done.Yes, if no force is applied. Work = force x distance, so if the force is zero, no work is done.Yes, if no force is applied. Work = force x distance, so if the force is zero, no work is done.Yes, if no force is applied. Work = force x distance, so if the force is zero, no work is done.
Work done by a force is zero when the force is applied perpendicular to the direction of motion of the object. Another scenario is when the force is applied but there is no displacement of the object.
The centripetal force always acts perpendicular to the displacement of the object moving in a circular path. Since the work done is the product of force and displacement in the direction of force, and the displacement is perpendicular to the centripetal force, the work done by the centripetal force over a full rotation is zero.
no work will be done because force is applied but displacement is zero so no work will be done.
If the angle between the displacement and force applied is less than a right angle, then it is Positive Work done. If the angle between the displacement and the force applied is greater than a right angle then it is Negative Work done. If the displacement and force are at right angles, or either is zero, then it is Zero Work done.
If the angle between the force and the direction of motion of a body is 90 degrees (perpendicular), then the work done is zero. This is because the component of force in the direction of motion is zero, resulting in no work being done on the object.
The work done by a centripetal force is zero because the force is always directed towards the center of the circular motion, while the displacement is perpendicular to the force. This means that the angle between the force and the displacement is 90 degrees, resulting in zero work being done.
Hello word performed is got by the expression F s cos@ If F ie force is not applied at all then no work could be performed. If s ie displacement is zero then work is not done thought force is acting Thirdly if @ is 90 deg, ie the angle between the force applied and displacement made is 90 deg, then no work is said to be done by the force. This is the case the work performed by centripetal force on a rotating body.
An object moves in a circle at constant speed. The work done by the centripetal force is zero because: 1. the displacement for each revolution is zero 2. the average force for each revolution is zero 3. there is no friction 4. the magnitude of the acceleration is zero 5. the centripetal force is perpendicular to the velocity
An object moves in a circle at constant speed. The work done by the centripetal force is zero because: 1. the displacement for each revolution is zero 2. the average force for each revolution is zero 3. there is no friction 4. the magnitude of the acceleration is zero 5. the centripetal force is perpendicular to the velocity
No work is done on a person ascending an elevator as the force is in the same direction as the displacement, resulting in zero work done by the force moving the person.