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NEET2012PhysicsWork, Power and EnergyActual

The work done by a force acting on a body is as shown in the graph. The total work done in covering an initial distance of 20 m is

Options

  1. A225 J
  2. B200 J
  3. C400 J
  4. D175 J

Correct answer

B. 200 J

Step-by-step solution

Work done W= Area A B C D E F G A= Area A B C D G+ Area D E F G = 1 2 (15+10) 10+ 1 2 (10+20) 5=125+75=200 ~J

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