A block m is kept stationary on the surface of an accelerating cage as shown on figure. At the given instant, study the following statements regarding.
i. Normal reaction performs positive work on the block.
ii. Frictional work done on the block is negative.
iii. No net work is done by normal reaction and friction on the block.
Now mark the correct answer.
Answer & explanation
Correct answer: option 1
Since,the system move along x−axis and work done due to normal reaction will be positive.
Since, there is no relative motion with respect to
Encline work done by the friction is zero.
Hence,
option A is correct answer.