What is the angular frequency of oscillation of the block after the acceleration ceases?
10√2 rad/s
20 rad/s
20√2 rad/s
32 rad/s
A
10√2 rad/s
B
32 rad/s
C
20 rad/s
D
20√2 rad/s
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Solution
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Given : Mass of the block m=2kg
spring constant k=400N/m
Let angular frequency of the oscillation be w.
Now using w=√km
w=√4002⟹w=10√2rad/s
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