Solve.
-The number of centimeters, $d$, that a spring is compressed from its natural, uncompressed position is given by the formula $d = \sqrt { \frac { 2 W } { k } }$, where $W$ is the number of joules of work done to move the spring and $\mathrm { k }$ is the spring constant. If a spring has a spring constant of $0.2$, find the amount of work needed to move the spring 7 centimeters.
A) $4.9$ joules
B) 49 joules
C) $9.8$ joules
D) $0.7$ joules

Question

Quizplus · Accepted Answer

To find the work needed, rearrange the formula to solve for $W$: $W = \frac{1}{2}kd^2$. Substituting $k = 0.2$ and $d = 7$, we get $W = \frac{1}{2} \times 0.2 \times 7^2 = 4.9$ joules.

Solve -The Number of Centimeters ddd , That a Spring Is Compressed from Its Natural, Uncompressed

Solve
-The Number of Centimeters $d$ , That a Spring Is Compressed from Its Natural, Uncompressed