What is the condition for negative work give an example?

What is the condition for negative work give an example?

NEGATIVE WORK: The work done is said to be negative work when force and displacement are in opposite direction. Example: When an object is thrown upwards,the force of gravity is in downward direction whereas displacement acts in upward direction.

Under what conditions is work done negative?

If the displacement of the body is in the direction opposite to the force, then work done is negative.

Which of the following is an example of negative work done?

(i) When a body is thrown upwards, gravity does the negative work. Since the gravitational force acts downwards but the displacement is upwards. (ii) When we walk frictional force does the negative work since frictional force acts opposite to displacement.

What is negative work give three examples of negative work?

(1) The work done by the frictional force, when we push the book to a distance. (2) The work done by the gravitational force, when we are lifting a bucket of water from the well. (3) The work done by the gravitational force, when we are climbing on a tree.

Can work be negative if yes give an example?

Yes, work can be negative. Example: A person walking down the stairs with load on its head, the work done is negative as the force applied on the load is in opposite direction to its displacement.

How is work negative?

Negative work is done when an object moves in opposite direction of the direction of application of force. For example, pulling a bucket of water from well. You apply the force downwards on the rope, but the displacement of the bucket is upward. Hence negative work.

What are the condition of work done?

work is done when the object moves through a certain distance in a particular direction after the force had been applied on it. For work to be done, the force must be applied and must not be zero.

Is work done negative or positive?

Work can be either positive or negative: if the force has a component in the same direction as the displacement of the object, the force is doing positive work. If the force has a component in the direction opposite to the displacement, the force does negative work.

Can work done be negative if yes give an example?

What are the conditions in which work done is positive negative and zero?

Hence, work is positive. Zero work – the work done is said to be zero when force and displacement are perpendicular to each other. Negative work done – The work done is said to be negative when force and displacement are in opposite directions. Hence, work is negative.

What is work done give example of positive negative and zero work done?

If force and displacement become perpendicular to one another, it is zero work. Stepwise solution: (i) Example of positive work: When we push a book to just a distance, the work performed by the frictional force will be negative.

Which is an example of a negative work?

Negative work is performed if the displacement is opposite to the direction of the Force applied. Example: Work was done the gravity on a rocket going perpendicular upwards.

When do you do positive and negative work?

Positive Work When force acts in direction of motion of body, it is called positive work Example Direction of force and Direction of Motion in the same direction Negative Work When force acts opposite to direction of motion of body it is called negative work Example Direction of force and Direction of Motion are at angle of 180 degrees Zero Work

Which is an example of positive work on an object?

POSITIVE WORK: The work done on an object is said to be positive work when force and displacement are in same direction. Example: When an object moves on horizontal surface, force and displacement acts in same direction.

Which is the best example of zero work?

ZERO WORK: The work done is said to be zero when force and displacement are perpendicular to each other or when either force or displacement is zero. Example: When we hold an object and walk, the force acts in downward direction whereas displacement acts in forward direction.