First slide
Pseudo force
Question

The elevator shown in fig. is descending with an acceleration of 2 m/s2. The mass of the block A = 0.5 kg. The force exerted by the block A, on block B is

Moderate
Solution

F = mg - R = 0.5 x 10 - 0 5 x 2

   =5-1 = 4N.

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