NEET Physics Work-Energy Theorem Match the Following Question
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Work done by friction | (i) Change in kinetic energy |
| (b) Positive work | (ii) Angle between force and displacement is 180° |
| (c) Negative work | (iii) Angle between force and displacement is 0° |
| (d) Work-energy theorem | (iv) Work done on an object by net force |
a-ii, b-iii, c-i, d-iv
a-i, b-ii, c-iv, d-iii
a-ii, b-iv, c-iii, d-i
a-i, b-iii, c-ii, d-iv
Correct Answer
Detailed Explanation
The work done by friction is negative as it opposes motion, making the angle 180°. Positive work occurs when the angle is 0°, leading to an increase in kinetic energy, which aligns with the work-energy theorem stating that the change in kinetic energy equals the work done by the net force.
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