Question

5. Define the following terms :
(a) Effort, (b) Load, (c) Fulcrum, (d) Effort arm,
(e) Load arm, (f) Input energy, (g) Output energy
6. (a) What do you understand by the term efficiency
of machine?
(b) A machine has an efficiency of 70%. Explain
the statement as clearly as possible.
7. The physical quantities such as mechanical
advantage and efficiency of machine has no
units, but are pure numbers. Explain.​

Answer 1

Answer:

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Explanation:

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