- #1

superaznnerd

- 59

- 0

**hooke's law and shm help please**

## Homework Statement

a 4 kg mass is placed on a spring (k = 40n/m) which hangs vertically. the mass is allowed to oscillate in shm. the maximum distance the mass travels in anyone direciton is 30cm

## Homework Equations

k = 40 n/m

distance = 30 cm

mass = 4 kg

Fspring = -kx

net force = Fspring-mg

## The Attempt at a Solution

Fspring = -kx

Fspring = -(40) (.3) = -12 (wrong answer)