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:
and 
only
and 
only
Text Solution
Verified by ExpertsD
Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket is positive
Work done by friction on a body sliding down an inclined plane is negative
Work done by a applied force on a body moving on a rough horizontal plane with uniform velocity is positive
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