1.

A 10 kg collar is attached to a spring (spring constant 600 N/m.), it slides without friction over a horizontal rod. The collar iis displaced from the equilibrium position by 20 cm and released. What is the speed of the oscillation ?

Answer»

`sqrt(60)xx0.2" m"//"s"`
`60xx0.2" m"//"s"`
`60xx2" m"//"s"`
`6xx0.2" m"//"s"`.

Solution :P.E. at EXTREME position = K.E. at MEAN position
`:. (1)/(2)KX^(2)=(1)/(2)mv^(2)`
`:.""v=sqrt((kx^(2))/(M))`
`v=sqrt((600)/(10)).(20)/(100)`
`v=sqrt(60)xx0.2" m"//"s"`
So correct CHOICE is (a).


Discussion

No Comment Found

Related InterviewSolutions