A3.0-kg brick rests on a perfectly smooth ramp inclined at 34° above the horizontal. the brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick.

the spring has a spring constant (force constant) of 120 n/m.

by how much does the spring stretch with the brick attached? - 240 cm- 24 cm- 14 cm- 36 cm- 360 cm