3500 * 123.48 = 431480, not 43300g9WfI said:
Thank you so much!Steve4Physics said:
Work done against resistive forces is the energy expended in overcoming any opposing forces that act on an object as it moves. This can include friction, air resistance, and other forms of resistance that act against the motion of an object.
The work done against resistive forces can be calculated by multiplying the magnitude of the resistive force by the distance over which the force is applied. This can be represented by the equation W = Fd, where W is the work done, F is the resistive force, and d is the distance.
Kinetic energy (Ek) is the energy that an object possesses due to its motion. When an object moves against resistive forces, some of its kinetic energy is converted into work done against those forces. This means that as Ek decreases, the work done against resistive forces increases.
Yes, work done against resistive forces can be negative if the resistive force is acting in the same direction as the object's motion. This means that the object is losing kinetic energy as it moves, and the work done against resistive forces is actually doing work on the object to slow it down.
The concept of work done against resistive forces is useful in understanding and predicting the behavior of objects in motion. It is particularly important in engineering and physics, where it is used to design and analyze systems that involve motion and resistive forces, such as vehicles, machines, and structures.