Laws Of Motion Question 310

Question: The elevator shown in fig. is descending with an acceleration of2m/s2 . The mass of the block A=0.5kg. The force exerted by the block A on block B is

Options:

A) 2N

B) 4N

C) 6N

D) 8N

Show Answer

Answer:

Correct Answer: B

Solution:

[b] R=mgma=0.5×100.5×2=51=4N



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