Work Energy And Power Question 211

Question: A force F acts on a particle such that its position x changes as shown in the figure. The work done by the particle as it moves from x=0 to 20 m is

Options:

A) 37.5 J

B) 10 J

C) 45 J

D) 22.5 J

Show Answer

Answer:

Correct Answer: C

Solution:

[c] W=areaofFxgraph

=areaofΔ+areaofrectangle+areaofΔ

=5×32+10×3+5×32=45J



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