A Very Light Ideal Spring with a Spring Constant (Force

question 138

Short Answer

A very light ideal spring with a spring constant (force constant) of 2.5 N/cm pulls
horizontally on an 18-kg box that is resting on a horizontal floor. The coefficient of static
friction between the box and the floor is 0.65, and the coefficient of kinetic friction is 0.45.
(a) How long is the spring just as the box is ready to move?
(b) If the spring pulls the box along with a constant forward velocity of 1.75 m/s, how long
is the spring?
(c) How long is the spring if it pulls the box forward at a constant 2.75 m/s?

---

Definitions:

Perceptions

The process of organizing, interpreting, and understanding sensory information.

Aversive Conditioning

A behavioral training technique where an undesirable behavior is paired with an unpleasant stimulus to reduce the behavior.

Unpleasant Event

An undesirable or negative occurrence that often leads to emotional discomfort or distress.

Systematic Desensitization

A behavioral therapy technique used to reduce phobic responses or anxiety by gradual exposure to the feared object or situation in conjunction with relaxation exercises.