18. The given diagram shows three pulley systems P, Q and R. In each system, an effort is applied to lift the same load. The distance moved by the effort is greater than that moved by the load in Р (A) R only (C) P and R R (B) P and Q (D) Q and R
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1
Answer:
what unit are associated with the nuit vector i,j and k?
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3
Answer:
Correct option is
D
(Q and R)
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