A car of mass 1500 kg is lifted up a distance of30 m by crane A in
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Question:
A car of mass 1500 kg is lifted up a distance of30 m by crane A in 0.5 minutes. The secondcrane B does the same job in 1 minute. Theratio of their powers is
(1) 1 : 2
(2) 2 : 1
(3) 1 : 4
(4) 4 : 1
Related Book For
Smith and Roberson Business Law
ISBN: 978-0538473637
15th Edition
Authors: Richard A. Mann, Barry S. Roberts
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