Questions
The kinetic energy of a particle, executing S.H.M. is 16 J, when it is in its mean position. If the amplitude of oscillations is 25 cm and the mass of the particle is 5.12 kg, the time period of its oscillations is
detailed solution
Correct option is D
Here 12MA2ω2=16 joule Given that A=25cm=0⋅25m M=5.12kg and ω=2π/T ∴ 12×(5⋅12)(0⋅25)24π2/T2=16 Solving,weget T=π/5sec.Talk 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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