GK
SOIL AND AGRICULTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Work is expressed by the formula as-
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Work = Force (kg) x Distance (m)
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Work = Force (g) x Distance (m)
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Work = Force (mg) x Distance (m)
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Work = Force (kg) x Distance (cm)
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Explanation:
Detailed explanation-1: -Work can be calculated with the equation: Work = Force × Distance. The SI unit for work is the joule (J), or newton • meter (N • m). One joule equals the amount of work that is done when 1 N of force moves an object over a distance of 1 m.
Detailed explanation-2: -The work W done on an object by a constant force is defined as W = F·d. It is equal to the magnitude of the force, multiplied by the distance the object moves in the direction of the force. In the example above F = mg = (20 kg)(9.8 m/s2) = 196 N, W = (196 N)(1.5 m) = 294 Nm.
Detailed explanation-3: -Unit of Work: Work formula is used to compute work done, force or displacement in any problem. It is written as in Newton meter or Nm.
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