Physics > 2008 > 17
WASSCE
Which of the following equations for the efficiency of a machine is correct?
A.
| Efficiency | = | Velocity Ratio Mechanical Advantage | × | 100% |
B.
| Efficiency | = | Input Output | × | 100% |
C.
| Efficiency | = | Load distance Effort distance | × | 100% |
D.
| Efficiency | = | Mechanical Advantage Velocity Ratio | × | 100% |
Answer: D
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