MHT CET 2025 Physics question
A mass 'M' attached to a horizontal spring executes S.H.M. of amplitude . When the mass M passes through its mean position then a smaller mass 'm' is placed over it and both of them move together with amplitude . The ratio is
Answer: (C)
Solution
At the mean position the speed of is the maximum, with . Placing on it at that instant is a perfectly inelastic interaction along the horizontal, so momentum is conserved: . After this, the combined mass oscillates with
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