Laws Of Motion Question 432

Question: Two masses m1 and m2 are attached to the ends of a massless string which passes over a frictionless pulley attached to the top of an inclined plane. The angle of inclination of the plane is θ . Take g=10ms2 Ifm1=10kg,m2=5kg,

θ=30o, what is the acceleration of mass m2 ?

Options:

A) zero

B) (2/3)ms2

C) 5ms2

D) 10/3ms2

Show Answer

Answer:

Correct Answer: A

Solution:

[a] a=(m2m1sinα)g(m1+m2)=(510sin30)g(m1+m2)=0



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