## Question

A tray of mass M = 10 kg is supported on two identical springs, each of spring constant *k*, as shown in fig. When the tray is depressed a little and released, it executes simple harmonic motion of period 1.5 s. When a block of mass m is placed on the tray, the period of oscillation becomes 3.0 s. The value of *m* is

### Solution

30 kg

Which gives m = 30kg.

#### SIMILAR QUESTIONS

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