When No Work Is Done Explain? No work, as understood in this context, is done unless the object is displaced in some way and there is a component of the force along the path over which the object is moved. Holding a heavy object stationary does not transfer energy to it, because there is no
Which Force Resists You From Doing The Work Fast? This slowing force is friction. Friction can slow things down and sometimes make things go faster because of the grip that it causes. STATIC FRICTION is the force that will resist the movement up until it is overcome by a greater force and the motion occurs.
When You Lift Your Books From The Desk You Apply? Answer: Answer. When you lift the book, you are doing positive work, because the force you exert on it is in the same direction as its displacement. Gravity is doing negative work. Did you apply force in lifting the book? Work is done only when
Can A Tension Force Be Negative? Tension can either be positive or negative depending on where the coordinate axes are placed. Regardless of the upward direction being taken as positive or negative, the force balance equation for both gives the same result. Is tension positive or negative work? The tension does positive work in one
What Does Negative Mechanical Power Mean? Negative work being done on something means that energy is being taken away from it. eg. you push on something heavy, it accelerates, you lose chemical energy in your muscles and the object gains kinetic energy in it’s motion. What types of energy can be negative? Yes mechanical energy
When A Positive Charge Moves In The Direction Of The Electric Field What Happens? If the positive charge moves in the direction of the field, the field does positive work on the charge. If the negative charge moves opposite the direction of the field, the field does positive work on the charge. If the negative
Can A Person Have Zero Mechanical Energy? But Mechanical energy is the sum of kinetic energy and potential energy. So the kinetic energy of a body is equal to zero equals zero. But it may have potential energy. So, even if the momentum of the body is zero, it may have mechanical energy. Do humans
What Would Be The Work Done If The Displacement Of An Object Is Zero? If the displacement of the object is zero, then one can calculate the work done by each individual force, the work done by each force is zero. Why? Work is not defined in terms of what would have happened to the
Is It Possible For A System To Have Negative Energy? Is it possible for a system to have negative potential energy? … Yes, Since the choice of the zero of potential energy is arbitrary. What does it mean for a system to have negative potential energy? # A negative potential energy means that work must
Is It Possible To Have A Zero Electric Field Value Between A Negative And Positive? 7) Is it possible to have a zero electric field value between a negative and positive charge along the line joining the two charges? A) Yes, if the two charges are equal in magnitude. When can the electric field be