Work Energy And Power Question 209

Question: A force F acting on an object varies with distance x as shown here. The force is in N and x in m. The work done by the force in moving the object from $ x=0 $ to $ x=6 $ m is

Options:

A) 18.0 J

B) 13.5 J

C) 9.0 J

D) 4.5 J

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Work done = area under F-x graph = area of trapezium

$ OABC =\frac{1}{2}( 3 + 6 )( 3 ) $

$ =13.5J $



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