Q. A force F = 20 + 10y acts on a particle in y-direction where F is in newton and y in meter. Work done by this force to move the particle from y = 0 to y = 1 m is :

A) 30 J
B) 5 J
C) 25 J
D) 20 J
Explanation

[Solution] $W = \int_0^1(20 + 10y)dy = 20 + 5 = 25$ J. Answer (3).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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