#### To determine

**(a)**

**To find:**

The work done if the gorilla reaches the height of *20ft* in 10 seconds

#### Answer

*7200 ft·lb*

#### Explanation

**1) Concept:**

Use the formula for work done. Work done does not depend on the amount of time.

**2) Formula:**

*W=F·d*

Where *F* is force and *d* is distance

**3) Given:**

i. *F=360 lb*

ii. *d=20 ft*

**4) Calculation:**

The work done by the gorilla to climb the tree to reach a height of *20 ft* in *10* seconds is by using the formula

*W=F·d*

Substitute the given values

*W=360·20*

Simplify,

*W=7200 ft·lb*

**Conclusion:**

Therefore,

The work done by the gorilla to climb the tree to a height of *20 ft10* seconds is *7200 ft·lb*

#### To determine

**(b)**

**To find:**

The work done if the gorilla reaches the height of *20ft* in 5 seconds

#### Answer

*7200 ft·lb*

#### Explanation

Since the work done does not depend on the amount of time taken by the gorilla to climb

Therefore, work done remains the same as calculated in part (a)

That is %<([a-z0-9]+)>𝑊=7200 *𝑓𝑡·𝑙𝑏*

**Conclusion:**

Work done by the gorilla to climb the tree to a height of *20 ft* in *5* seconds is * 7200 ft·lb*