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Get Full Access to Calculus With Applications - 10 Edition - Chapter 4.1 - Problem 72a
Get Full Access to Calculus With Applications - 10 Edition - Chapter 4.1 - Problem 72a

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# Velocity If a rock is dropped from a 144-ft building, its ISBN: 9780321749000 67

## Solution for problem 72A Chapter 4.1

Calculus with Applications | 10th Edition

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Problem 72A

Problem 72A

Velocity If a rock is dropped from a 144-ft building, its position (in feet above the ground) is given by s(t) = −16t2 + 144, where t is the time in seconds since it was dropped.

a. What is its velocity 1 second after being dropped? 2 seconds after being dropped?

b. When will it hit the ground?

c. What is its velocity upon impact?

Step-by-Step Solution:

Solution:

Step 1 of 2:

In this problem, we need to find the velocity 1 second after being dropped and 2 seconds after being dropped.

Step 2 of 2

##### ISBN: 9780321749000

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