Can you give an example where force does work on a body without changing its kinetic energy?

Another example is if you take a small steel ball and drop it in a thick syrup, you would see that the ball descends with a uniform speed (terminal speed). In this case, gravity is doing positive work, and the syrup does a negative work. Again, total work on the ball is zero, hence there is no change in kinetic energy.

Is it possible to exert a force on a system but not do any work?

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.

Is it possible that the force acting on a body changes its velocity but does no work on the body explain with an example?

Yes, it is possible that a force is acting on a body and still the work done is zero. When a man is pushing a wall, work done is zero as there is no displacement.

Does force exerted on a body changes its kinetic energy?

Kinetic Energy. Direction of motion.

Is it possible to exert a force which does work?

Work Example In order to accomplish work on an object there must be a force exerted on the object and it must move in the direction of the force.

What happens to the body on which work is done?

Work done on a body is equal to the increase in the energy of the body, for work transfers energy to the body. If, however, the applied force is opposite to the motion of the object, the work is considered to be negative, implying that energy is taken from the object.

Is it possible that a body is in accelerated motion under force acting on the body?

Yes, it is possible if there is no displacement. For example, in case of circular motion the body is in accelerated motion under force acting on the body but displaccement is zero. So, work will also be zero.

Is it possible that a body is in accelerated motion under force acting on the body yet no work?

Yes, it is possible. A body in uniform circular motion is an example of accelerated motion. Thus, the work done can be zero for an accelerated body.

What does the force exerted on a body changes?

Force exerted on a body changes it’s Direction of motion. Momentum.

Is it possible to do work but not change kinetic energy?

Yes. If the force exerted on the body does no result in a sustained movement, you may say that the force has done a work but not changed kinetic energy. Examples:

What happens when a force is exerted on a body?

A force is exerted on a body, kinetic energy increases but no work is done by the force. Why? After reading the article, I was totally perplexed . I was reading the External forces and internal energy transfers in Principles of Physics by Resnick,Halliday,Walker. It goes like that

Does kinetic energy change when a force is non-zero?

Obviously if total work done by all the forces on an object is non-zero, then the kinetic energy will change. Yes. If the force exerted on the body does no result in a sustained movement, you may say that the force has done a work but not changed kinetic energy.

How does an external force change the kinetic energy of an object?

An external force can change the kinetic energy or potential energy of an object without doing work on the object- that is, without transferring energy to the object. Instead,the force is responsible for transfers of energy from one type to another inside the object. Then they cited an example.