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)` The observer B finds that the work done by pseudo-force on the block is :A. zeroB. `-ma^(2) t_(0)`C. `+ ma^(2) t_(0)`D. `- mg a t_(0)`

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)` The observer B finds that the work done by pseudo-force on the block is :A. zeroB. `-ma^(2) t_(0)`C. `+ ma^(2) t_(0)`D. `- mg a t_(0)`
Answer» Correct Answer - A

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