A block of mass mis kept in an elevation which starts1 moving downward with an acceleration aas shown in figure. The block is observed by two observers A and B for a time interval `t_(0)` According to the observer A :A. the work done by gravity is zeroB. the work done by normal reaction is zeroC. the work done by pseudo-force is zeroD. all of the above

A block of mass mis kept in an elevation which starts1 moving downward

1.	A block of mass mis kept in an elevation which starts1 moving downward with an acceleration aas shown in figure. The block is observed by two observers A and B for a time interval `t_(0)` According to the observer A :A. the work done by gravity is zeroB. the work done by normal reaction is zeroC. the work done by pseudo-force is zeroD. all of the above
Answer» Correct Answer - D

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