Questions
A particle of mass m executes simple harmonic motion with amplitude a and frequency v. The average kinetic energy during its motion from the position of equilibrium to the end is:
detailed solution
Correct option is A
x=A cos ωt⇒v=dxdt=-Aω sin ωt KE=12mv2=12mA2ω2sin2ωt Average KE=12mA2ω2Talk 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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