Laws Of Motion Question 310

Question: The elevator shown in fig. is descending with an acceleration of$ 2m/s^{2} $ . 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=mg-ma=0.5\times 10-0.5\times 2=5-1=4N $



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