Laws Of Motion Question 311

Question: A block A of mass 7 kg is placed on a frictionless table. A thread tied to it passes over a frictionless pulley and carries a body B of mass 3 kg at the other end. The acceleration of the system is (given g=10ms2 )

Options:

A) 100m/s2

B) 3m/s2

C) 10m/s2

D) 30m/s2

Show Answer

Answer:

Correct Answer: B

Solution:

[b] a=m2m1+m2 g=37+3×10=3m/s2



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