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Question

A 10 kg metal block is attached to a spring of spring constant 1000Nm−1. A block is displaced from equilibrium position by 10 cm and released. The maximum acceleration of the block is

A
10ms2
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B
100ms2
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C
200ms2
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D
0.1ms2
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Solution

The correct option is A 10ms2
Given : m=10 kg k=1000 N/m
Amplitude of oscillation A=10 cm =0.1 m
Angular frequency of oscillation w=km=100010=10 rad/s
Maximum acceleration amax=Aw2
amax=0.1×102=10 m/s2

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