Question

a load of 400 newton is lifted by a first class lever in which the load is at the distance of 20 cm and the effort is at the diatance of 60 cm from the fulcrum if 150n effort is required to lift it find its efficienc​

Answer 1

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$\frac{400}{20}$

$\to \: 20$

• 20m/s

Answer 2

Didn't got the answer -__-"

Newton, absolute unit of force in the International System of Units (SI units), abbreviated N. It is defined as that force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second.