JEE · NEET Previous Year Question
Force acting on a particle is . Work done by this force is zero, when a particle is moved on the line . Here value of is -
Topic: NEET PYQ
Answer: A. Full step-by-step solution below.
- A2
- B4
- C6
- D8
Correct answer: A
Solution
(a) Force is parallel to a lineThe equation of given line can be written as
Work done will be zero, when force is perpendicular to the displacement i.e., the above two lines are perpendicular or
or
or
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