Physics · 2023
JEE Main · 29 January 2023, Shift 2 · Q5
Identify the correct statements from the following: A. Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket is…
Identify the correct statements from the following:
A. Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket is negative.
B. Work done by gravitational force in lifting a bucket out of a well by a rope tied to the bucket is negative.
C. Work done by friction on a body sliding down an inclined plane is positive.
D. Work done by an applied force on a body moving on a rough horizontal plane with uniform velocity in zero.
E. Work done by the air resistance on an oscillating pendulum in negative.Choose the correct answer from the options given below:
Official answer
From NTA’s final answer key for this paper.
(1)
B and E only
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.