In Column I, statements related to work done by a force on an object are given. In…
PHYSICS · Subjective · CBSE · Physics · Work and Energy · Work and Energy
Problem
In Column I, statements related to work done by a force on an object are given. In Column II, the sign of the work done is given. Match the entries of Column I with those of Column II.| Column I | Column II |
|---|---|
| (a) Work done by friction on a block as it slides down a rigid fixed incline, with respect to the ground | (p) Positive |
| (b) In the above case, work done by friction on the incline, with respect to the ground | (q) Negative |
| (c) Work done by a man in lifting a bucket out of a well by a rope tied to the bucket, with respect to the ground | (r) Zero |
| (d) Total work done by friction in (a), with respect to the ground | (s) May be positive, negative, or zero |