Non-conservative forces, like friction and air resistance, make energy calculations a bit tricky. Here’s how:
Path Matters: The work done by non-conservative forces depends on the path taken. For example, the amount of work done by friction can change based on how far you go and the type of surface.
Energy Loss: Non-conservative forces can change mechanical energy into other types of energy, like heat. This means we can lose energy. For instance, friction can cause us to lose up to 30% of mechanical energy in real-life situations.
Calculating Work: We can figure out the work done by non-conservative forces using the formula (W_{nc} = \Delta KE + \Delta PE). This means that any changes in kinetic energy (how fast something moves) and potential energy (stored energy) must include the effects of non-conservative work.
Work Isn't Always Consistent: The total work done isn't always the same. So, when we do energy calculations, we need to think about more factors. This can make it harder to predict outcomes and understand what’s happening.
Non-conservative forces, like friction and air resistance, make energy calculations a bit tricky. Here’s how:
Path Matters: The work done by non-conservative forces depends on the path taken. For example, the amount of work done by friction can change based on how far you go and the type of surface.
Energy Loss: Non-conservative forces can change mechanical energy into other types of energy, like heat. This means we can lose energy. For instance, friction can cause us to lose up to 30% of mechanical energy in real-life situations.
Calculating Work: We can figure out the work done by non-conservative forces using the formula (W_{nc} = \Delta KE + \Delta PE). This means that any changes in kinetic energy (how fast something moves) and potential energy (stored energy) must include the effects of non-conservative work.
Work Isn't Always Consistent: The total work done isn't always the same. So, when we do energy calculations, we need to think about more factors. This can make it harder to predict outcomes and understand what’s happening.