"Exactly," Sam said. "To find the , we divide the AMA by the IMA. 2 divided by 4 is 0.5. We have 50% efficiency."
If a machine has a Work Input of 100 J and a Work Output of 80 J, what is its efficiency? Solution: How to Find the Official PDF Answer Key "Exactly," Sam said
$$IMA = \fracd_ind_out = \fracd_ed_r$$ (Where $d_e$ is effort distance and $d_r$ is resistance distance) Note: For specific machines, IMA may be calculated differently (e.g., for a lever: length of effort arm / length of resistance arm). " Sam said. "To find the
( \textEfficiency = \frac4.56 \times 100% = \mathbf75% ) IMA may be calculated differently (e.g.