Chapter 2.6, Problem 7CP

(1)

(a)

To determine

The spring is compressed to a length of $13\text{cm}$ and the unit vector $\widehat{L}$.

(b)

To determine

As the spring is stretched to a length of $24\text{cm}$ and the unit vector $\widehat{L}$.

(2)

(a)

To determine

The vector $\overrightarrow{L}$ for spring of stiffness $95\text{N}/\text{m}$ , and with relaxed length $15\text{cm}$, stands vertically on a table.

(b)

To determine

The magnitude of vector $\overrightarrow{L}$.

(c)

To determine

The unit vector $\widehat{L}$.

(d)

To determine

The stretched length of the spring.

(e)

To determine

The force exerted on the hand by the spring.