MHT CET Physics question
A body is suspended from a rigid support by an inextensible string of length 'L' on which another identical body of mass 'm' struck in-elastically moving with horizontal velocity . The increase in the tension in the string just after it is struck by the body is [MHT-CET 2022, MHT-CET 2022]
Answer: (D)
Solution
Perfectly inelastic collision of equal masses gives common speed ; then T=2mg+2mv^2/L=2mg+mg=3mg, compared
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