The net force on the bag is zero. But what force do you exert and what work does that force do?ericka141 said:
ericka141 said:
Yes, work is still being done on the object even when it is moving at a constant velocity. Work is defined as the product of the force applied on an object and the displacement of the object in the direction of the force. As long as there is a force acting on the object, work is being done.
Work and constant velocity are related through the concept of net work. Net work is the total amount of work done on an object, and it is equal to the change in the object's kinetic energy. When an object is moving at a constant velocity, there is no change in its kinetic energy, thus the net work being done on the object is zero.
Yes, work can be negative when an object has constant velocity. This can happen when the force applied on the object is in the opposite direction of the displacement of the object. In this case, the work done on the object would be negative, indicating that the object is losing energy.
The angle between force and displacement does not affect work when an object has constant velocity. This is because the work equation only considers the force component that is in the direction of the displacement. Therefore, as long as the object is moving at a constant velocity, the angle between force and displacement does not have any impact on the work being done on the object.
Considering work when an object has constant velocity is important because it helps us understand the energy changes happening in the system. Even though the object's speed may not be changing, the work being done on it can still affect its energy. This is especially important in situations where the force may be changing and the object is still moving at a constant velocity.