- #1

Mary1910

- 31

- 1

a) Calculate the total energy of the mass spring system.

Et=½kA^2

=½(320N/m)(0.1m)^2

=1.6 Jb) Calculate the maximum speed of the mass.

Et=½mv^2 + ½kx^2

1.6 J = ½(12kg)v^2 + 0

v^2 = (3.2/12)

= √0.2667 m/s

=0.52

=5.2 x 10^-1c) Calculate the speed of the mass when it is 5.0 cm from the equilibrium point.

And this one I'm not entirely sure...

do I use a= (kx) / (m) ?