Hooks Law Spring Force

mg

The weight of an object near a planet

g

gravitational field due to the planet at the object’s location

 m

is the mass

The gravitational field near a planet is always equal

to the free-fall acceleration.

The force exerted on an object by a spring is always directed

toward the equilibrium position of the object–spring system

Spring constant is measured

in N/m

The spring constant depends on the spring

think of it as a measure of how ‘stiff’ the spring is.

Fs=kx

Hookes Law Spring Force

spring constant

k

The force exerted by a spring (F_s)

is proportional to the distance it is stretched from its equilibrium position (x)