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Question

A trolley of mass 3.0 kg, as shown in figure, is connected to two springs, each of spring has spring constant 600 Nm3. If the trolley is displaced from its equilibrium position by 5.0 cm and released, what is:
a) the period of ensuring oscillations, and
b) the maximum speed of the trolley?

1139445_568447fc78ff4122aedd0c0f6d06301a.png

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Solution

These springs are in parallel (equal displacement)

=600+600
kep=1200
(i) T2πmkep2π31200
=2π1400
=2×120
T=π10sec
(ii) Max speed Aw
=Axkepm
=5×102×12003
5×102×102
=100×102
=1m/s

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