A particle of mass 1 kg is executing SHM with an amplitude of 1 m and time period pis. Calculate the kinetic energy of the particle at the moment when the displacemen is 0.8 m from mean position?

A particle of mass 1 kg is executing SHM with an amplitude of 1 m and

1.	A particle of mass 1 kg is executing SHM with an amplitude of 1 m and time period pis. Calculate the kinetic energy of the particle at the moment when the displacemen is 0.8 m from mean position?
Answer» SOLUTION :`OMEGA=(2pi)/T=(2pi)/(pi)=2s` we have `v=omegasqrt(A^(2)-x^(2))` `=2sqrt((1)^(2)-(0.8)^(2))=2xx0.6=1.2m//s` KINETIC energy `=1/2mv^(2)=1/2xx1xx(1.2)^(2)=0.72J`