The energy efficiency of any process can be calculated using the formula:

Efficiency = (Useful energy output / Total energy input) * 100%

In this case, the useful energy output is the kinetic energy, which is 800 J. The total energy input is the stored elastic energy, which is 1000 J.

So, the efficiency = (800 J / 1000 J) * 100% = 80%

Therefore, the energy efficiency of the jump is 80%.

Question

The energy efficiency of any process can be calculated using the formula:

Efficiency = (Useful energy output / Total energy input) * 100%

In this case, the useful energy output is the kinetic energy, which is 800 J. The total energy input is the stored elastic energy, which is 1000 J.

So, the efficiency = (800 J / 1000 J) * 100% = 80%

Therefore, the energy efficiency of the jump is 80%.

Knowee AI · Accepted Answer

The energy efficiency of any process can be calculated using the formula:

Efficiency = (Useful energy output / Total energy input) * 100%

In this case, the useful energy output is the kinetic energy, which is 800 J. The total energy input is the stored elastic energy, which is 1000 J.

So, the efficiency = (800 J / 1000 J) * 100% = 80%

Therefore, the energy efficiency of the jump is 80%.

A child jumping on a bed converts 1000 J of stored elastic energy into 800 J of useful kinetic energy.Calculate the energy efficiency of the jump.20%60% 80%100%I'm not sure