Can the object be moving and have its work be zero?

Can the object be moving and have its work be zero?

Explanation: When an object is moving with constant velocity, it means that there is 0 acceleration and hence no force and no work done. Generally an object, when it moves with constant velocity, is overcoming some friction and some force is being applied to balance it.

Can work be done when force is zero?

We know work is done when an object covers a certain distance on application of a certain force. Therefore, work done is zero, when either net force applied is zero, or when the applied force is not enough to cause a displacement.

Can work done be zero in spite of movement of object give example?

Another example of zero work done in physics are: Speaking about electrostatics, work done, is the product of charge and the potential difference. If the charge is moved along an equipotential surface, then the potential difference is known to be zero between the given two points.

Can work be done if there is no motion?

If there is no motion in the direction of the force, then no work is done by that force. It changes the direction of the motion, but it does no work on the object. This can be applied to any circular orbit.

In which case is no work done?

If a force is applied but the object doesn’t move, no work is done; if a force is applied and the object moves a distance d in a direction other than the direction of the force, less work is done than if the object moves a distance d in the direction of the applied force.

When we can say work done is zero?

Zero work is done when the displacement of a body is zero or perpendicular (θ=900,cosθ=0) to the direction of force applied, then work done is zero. For example, if a person tries to push a wall, he is applying force yet the wall does not move, so the displacement of the wall is zero, and hence work done is zero.

What is zero work done with example?

1) A simple example of zero work is when you stand holding a bag in your hands and do not move it. Your hands apply a force on the bag to balance the force of gravity exerted on it but since there is no displacement of the bag, the work done on it by you (your force) and also the gravity is zero.

In which all conditions work done is zero?

In which situation is no work done?

If the force is perpendicular to the direction of displacement, work done is zero. When the displacement opposite to the direction of force, work is negative.

What is no work force give example?

Zero work is defined when force and displacement are perpendicular to one another and when force or displacement is zero. Example: If you push a wall, it doesn’t move there’s no work done. Sleeping for several hours is also an instance of not doing work.

What everyday activities do you know wherein work is done?

work done:

  • moving table.
  • pushing and pulling of door.
  • walking.
  • playing.
  • lifting a rock if it moves from its place.

Is it possible that a force acts on a body still the work done is zero?

If there is no displacement of that body, there is no work. Also, if there is no resistance to displacement (i.e. the force is unneeded to cause the displacement) there is no work. Originally Answered: Is it possible that if a force acts on a body still the work done is zero?

What happens when the net work of an object is zero?

The net work done by all forces acting on an object is equal to the kinetic energy change of that object. If the net work is zero, that means there is no kinetic energy change.

When is force perpendicular to the direction of motion no work is done?

This is because when a body when around in a circle, a centripetal force acts on the particle to keep it at that fixed distance from the centre. At each point, the force and the displacement are perpendicular to each other. Hence no work is done.

What happens if there is no net work?

upward is balanced by the weight of the chalk downward. Or in the case of the block being pulled on a level surface at constant velocity, the pulling force to the right is balanced by the friction force to the left. No net force means no net work.