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dAa elephant of weignt bo0ulift. Can a boy of weight 25 kg-wt standing on the smaller pistidthe elephant ?e input piston is 10 cm. The surface area of theorce applied to the input piston raises the output pestonAns.Here P, P500 kg wt/m2, Hence the boy can balance the elephant9 In a hydraulic lit, the surface area of the input pistonoutput piston is 3000 em2. A 100 Nby 1 m. Caleulate the work done.the injpAns 30 k.JMint:P F (AA) and W-FIml |
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Answer» Pressure input on piston P = F/A = 100 /10* 10^-4 P = 10^5 N/m² According to Pascal's law 10^5 = fo /3000* 10^-4 fo = 3 *10^4 Now Work done = 3 *10^4 * 1 = 3 *10^4 joules |
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