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Questions  

A particle executes harmonic motion with an angular velocity and maximum acceleration of 3.5 rad/sec and 7.5 m/s2 respectively. The amplitude of oscillation is

a
0.28 m
b
0.36 m
c
0.53 m
d
0.61 m

detailed solution

Correct option is D

Amax=aω2⇒a=Amaxω2=7.5(3.5)2=0.61 m

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A horizontal platform with an object placed on it is executing S.H.M. in the vertical direction. The amplitude of oscillation is 3.92×103m . What must be the least period of these oscillations, so that the object is not detached from the platform 


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