[ A block of mass :m' is kept on a platform which starts from rest with constant acceleration (g)/(4) upwards as shown in figure.Work done by normal reaction on block in time 't' is (x)/(32)mg^(2)t^(2), where 'x' value is qquad m]

A block of mass m is kept on a platform which starts from rest with constant acceleration g/4 upward, as shown in the figure. Work done by normal reaction on block in time t is:

A block of mass m is kept on a platform which starts from rest with constant acceleration g/2 upward, as shown in fig. Work done by normal reaction on block in time t is :

A block of mass m is kept on a platform which starts from rest with constant acceleration g/2 upward, as shown in fig. Work done by normal reaction on block in time t is :

A block of mass M is kept on a platform which is accelerated upward with a constant acceleration 'a' during the time interval T. The work done by normal reaction between the block and platform is

A block of mass m is kept on a platform Platform starts moving upwards with an acceleration of g/2 . Find the work done by the normal force on the block in the first one second.

A block of mass m is kept on a platform Platform starts moving upwards with an acceleration of g/2 . Find the work done by the normal force on the block in the first one second.

A block of mass m is kept in an elevation which starts moving downward with an acceleration 'a' as 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 gravity on the block is :

A block of mass m is kept in an elevation which starts moving downward with an acceleration 'a' as 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 pseodo-force on the block is

A block of mass m is kept in an elevation which starts moving downward with an acceleration 'a' as shown in figure. The block is observed by two observers A and B for a time interval t_(0) . . According to observer B , the net work done on the block is :