(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

While riding on an elevator descending with a constant speed of 3.3 m/s, you accidentally drop a book from under your arm.

(a) How long does it take for the book to reach the elevator floor, 1.1 m below your arm?

s

(b) What is the book's speed (relative to the earth) when it hits the elevator floor?

3. The attempt at a solution

4.9m/9.8m/s2=14.7

squareroot 14.7=3.834=answer a

1.1m+1/2(13.1)t

t=7.65

1.1m/7.65s=.1437=answer b

both of these answers were wrong. what equations am ia supposed to use?

how do i start?

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# Homework Help: Elevator going down and you drop a book

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