DIRECTIONS (Qs 51): Read the following passage and answer the questions that follows |
A block of mass \[15\text{ }kg\] is placed over a frictionless horizontal surface. Another block of mass \[10\text{ }kg\] is placed over it, that is connected with a light string passing over two pulleys fastened to the \[15\text{ }kg\] block. A force \[F=80N\]is applied horizontally to the free end of the string. Friction coefficient between two blocks is\[0.6\]. The portion of the string between \[10kg\] block and the upper pulley is horizontal. Pulley string and connecting rods are massless. (Take \[g=10\text{ }m/{{s}^{2}}\]) ![]() |
A) \[3.2\text{ }m/{{s}^{2}}\]
B) \[2.0\text{ }m/{{s}^{2}}\]
C) \[1.6\text{ }m/{{s}^{2}}\]
D) \[0.8\text{ }m/{{s}^{2}}\]
Correct Answer: A
Solution :
First, let us check upto what value of F, both blocks move together. Till friction becomes limiting, they will be moving together. Using the FBDsYou need to login to perform this action.
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