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A perpetual motion machine can never be built because it is not possible to eliminate

A)Momentum
B)Inertia
C)Elasticity
D)Friction

User ESL
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1 Answer

2 votes

Answer:

D. Friction

Step-by-step explanation:

Friction is a force that opposes motion. So a perpetual motion machine can never be built because it is impossible to eliminate frictional force. It can only be reduced

User Phylax
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