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 $
