Question 21
A wheel and axle is used to raise a load of 500 N by the application of an effort of 250 N. If the radii of the wheel and the axle are 0.4 cm and 0.1 cm respectively, the efficiency of the machine is
Objective
Question details
- Exam body
- NDA
- Subject
- Physics
- Year
- 2014/2015
- Question no.
- #21
- Type
- Objective
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