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CGP EDU Academic Team
Published on: September 12, 2026
As shown in the figure, a spring is kept in a stretched position with some extension by holding the masses 1 kg and 0.2 kg with a separation more than spring natural length and are released. Assuming the horizontal surface to be frictionless, the angular frequency (in SI unit) of the system is : 
Text Solution
Verified by ExpertsThe correct answer is:
D
Two masses ( 1 kg and 0.2 kg ) connected by a spring ( 
) on a frictionless surface undergo oscillation about their center of mass.
This two-body problem reduces to SHM with reduced mass 
.
The angular frequency is 
.
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