A load weighing 16 kg using an inclined plane to a height of 50 cm In this case, the work expended

| June 19, 2021 | education

A load weighing 16 kg using an inclined plane to a height of 50 cm In this case, the work expended was equal to 1000 J. Determine the efficiency of the inclined plane.

m = 16 kg.

g = 10 m / s2.

h = 50 cm = 0.5 m.

Az = 1000 J.

Efficiency -?

The efficiency coefficient shows what part of the spent work Az, expressed as a percentage, goes into useful work Ap: Efficiency = Ap * 100% / Az.

Useful work when lifting a body along an inclined plane An is expressed by the formula: An = m * g * h, where m is the mass of the load, g is the acceleration of gravity, h is the height of the inclined plane.

The formula for determining the efficiency of an inclined plane will take the form: efficiency = m * g * h * 100% / Az.

Efficiency = 16 kg * 10 m / s2 * 0.5 m * 100% / 1000 J = 32%.

Answer: the inclined plane has an efficiency of 32%.



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