Questions
Kinetic energy of a particle of mass 40 gm executing simple harmonic motion along a straight line is given by joule where x is in cm. Then frequency of oscillation of the particle is
detailed solution
Correct option is A
Kinetic energy K=12mω2A21−x2A2Comparing this equation with the given equation we get, A2=10.25⇒A=2 cmand 12mω2A2=16⇒12×401000.ω2.21002=16⇒ω2=16×50×2500 ω=10002 rad/s∴ f=ω2π=5002π HzTalk to our academic expert!
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One end of an ideal spring is connected with a smooth block with the other end with rear wall of driving cabin of a truck as shown in figure. Initially, the system is at rest. If truck starts to accelerate with a constant acceleration ‘a’ , then the block (relative to truck ):
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