Two masses of 4 , kg and 5 ,kg are connected by a string passing … - Vidyadip

MCQ

Two masses of $4\, kg$ and $5 \,kg$ are connected by a string passing through a frictionless pulley and are kept on a frictionless table as shown in the figure. The acceleration of $5\, kg$ mass is ........... $m/s^2$

A
$49$
✓
$5.44$
C
$19.5$
D
$2.72$

✓

Answer

Correct option: B.

$5.44$

b
(b)$a = \frac{{{m_2}}}{{{m_1} + {m_2}}} \times g = \frac{5}{{4 + 5}} \times 9.8 = \frac{{49}}{9} = 5.44\;m/{s^2}$

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