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| 1. |
A metal bar 70 cm long and 4.00 kg in mass is supported on two knife-edges placed 10 cm from each end. A 600 kgweight is suspended at 30 cm from one end. Find the reactions at the knife -edges, (Assume the bar to be of uniformcross section and homogeneous). Take g 9.8 ms-254.88N; 43.2N |
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