Laws Of Motion Question 158
Question: A 2 kg block is lying on a smooth table which is connected by a body of mass 1 kg by a string which passes through a pulley. The 1 kg mass is hanging vertically. The acceleration of block and tension in the string will be [RPMT 1997]
Options:
A) $ 3.27m/s^{2},6.54N $
B) $ 4.38m/s^{2},6.54N $
C) $ 3.27m/s^{2},9.86N $
D) $ 4.38m/s^{2},9.86N $
Show Answer
Answer:
Correct Answer: A
Solution:
Acceleration$ =\frac{m _{2}}{m _{1}+m _{2}}\times g $
$ =\frac{1}{2+1}\times 9.8=3.27\ m/s^{2} $ and $ T=m _{1}a=2\times 3.27=6.54\ N $
