A body of mass 100 gm is executing simple harmonic motion. Its displacement x (in cm) at time t (in second) is given by x=10 cos(50t-π/3). Then maximum restoring force acting on the body is

# A body of mass 100 gm is executing simple harmonic motion. Its displacement x (in cm) at time t (in second) is given by . Then maximum restoring force acting on the body is

1. A

7.5 N

2. B

75 N

3. C

25 N

4. D

50 N

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### Solution:

m = 0.1 kg, Amplitude A = 0.1 m and

$\therefore$ Maximum restoring force

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