Maximum speed of an object after a spring

[liamtcarroll]

A 534 g mass is connected to a light spring of
force constant 6 N/m that is free to oscillate
on a horizontal, frictionless track. The mass
is displaced 2 cm from the equilibrium point
and released from rest.

What is the maximum speed of the mass?

What is the maximum acceleration of the mass?

I found the period to be 1.87

Now I don't know what formula to use for the maximum speed, or to find the maximum acceleration.

 

[haruspex]

Do you know the formula for the energy stored in a spring? What will the stored energy be when the mass is at max speed?

 

[liamtcarroll]

is it Hooke's law?

 

[liamtcarroll]

wait is it PE=(1/2)(k)(x²)?

 

[liamtcarroll]

i got .037 m/s for my speed, does that sound right?

 

[haruspex]

i got .037 m/s for my speed, does that sound right?

Sounds too low. Pls post your working.