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A block of mass M is kept on a platform ...

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

`-(MgaT^(2))/(2)`

B

`(1)/(2) M(g+a)aT^(2)`

C

`(1)/(2) Ma^(2)T`

D

Zero

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Knowledge Check

  • A block of mass M is kept on a platform which starts accelerating upwards from rest with a constant acceleration a. During the time interval T, the work done by contact froce on mass M is (##NAR_NEET_PHY_XI_P2_C06_E09_011_Q01##)

    A
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    C
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