The two pulley arrangements shown in the figure are identical. The mass of the rope is…
Physics · JEE Main · NTA Exams — Laws of Motion
The two pulley arrangements shown in the figure are identical. The mass of the rope is negligible. In (a) the mass m is lifted up by attaching a mass 2m to the other end of the rope. In (b). m is lifted up by pulling the other end of the rope with a constant downward force of 2mg. The ratio of accelerations in two cases will be
\[\begin{array}{l} \text { (a) }\\ \text { (b) } \end{array}\]
\[\begin{array}{l} \text { (a) }\\ \text { (b) } \end{array}\]
- 1 : 1
- 1 : 2
- 1 : 3
- 1 : 4
Answer
(C) 1 : 3
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