A block A of mass m i rests on a horizontal table. A light string connected to it passes…
Physics · NEET · NTA Exams — Laws of Motion
A block A of mass mi rests on a horizontal table. A light string connected to it passes over a friction less pulley at the edge of table and from its other end another block B of mass m2 is suspended. The co–efficient of kinetic friction between the block and the table is µk. When the block A is sliding on the table, the tension in the string is
- \(m_{1} m_{2}\left(1+\mu_{1}\right) g /\left(m_{1}+m_{2}\right)\)
- \(m_{1} m_{2}\left(1-\mu_{k}\right) g /\left(m_{1}+m_{2}\right)\)
- \(\left(m_{2}+\mu_{k} m_{1}\right) g /\left(m_{1}+m_{2}\right)\)
- \(\left(m_{2}-\mu_{k} m_{1}\right) \mathrm{g} /\left(m_{1}+m_{2}\right)\)
Answer
(D) (m_ 2 - _ k m_ 1 ) g / (m_ 1 +m_ 2 )
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