Laws Of Motion Question 159

Question: A light string passes over a frictionless pulley. To one of its ends a mass of 6 kg is attached. To its other end a mass of 10 kg is attached. The tension in the thread will be[RPET 1996; JIPMER 2001, 02]

Options:

A)24.5 N

B) 2.45 N

C) 79 N

D) 73.5 N

Show Answer

Answer:

Correct Answer: D

Solution:

$ T=\frac{2m _{1}m _{2}}{m _{1}+m _{2}}g=\frac{2\times 10\times 6}{10+6}\times 9.8=73.5N $



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