Laws Of Motion Question 165

Question: Two masses m1=5kg and m2=4.8kg tied to a string are hanging over a light frictionless pulley. What is the acceleration of the masses when they are free to move (g=9.8m/s2) [AIEEE 2004]

Options:

A) 0.2m/s2

B) 9.8m/s2

C) 5m/s2

D) 4.8m/s2

Show Answer

Answer:

Correct Answer: A

Solution:

a=[m1m2m1+m2]g=[54.85+4.8]×9.8=0.2 m/s2



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