To understand the meaning and possible applications of the work-energy theorem. in this problem, you will use your prior knowledge to derive one of the most important relationships in mechanics: the work-energy theorem. we will start with a special case: a particle of mass m moving in the x direction at constant acceleration a. during a certain interval of time, the particle accelerates from vi to vf, undergoing displacement s given by s=xf−xi.

Explanation:

The particle travels between two positions and , this can be considered as the result of adding infinite elementary displacements. Therefore, the total work done by force in this displacement is given by:

According to Newton's second law:

Recall that and . So, we have:

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

need to see circuit to get time constant