- #1

garcia1

- 27

- 0

## Homework Statement

My problem is the last one, but it is a continuation of these first two problems, so I thought I'd include them.

In Mostar, Bosnia, the ultimate test of a

young man’s courage once was to jump off

a 400-year-old bridge (now destroyed) into

the River Neretva 27 m below the bridge.

How long did the jump last? The accelera-

tion of gravity is 9.8 m/s2 .

Answer in units of s.

How fast was the diver traveling upon impact

with the river?

Answer in units of m/s.

**If the speed of sound in air is 343 m/s, how**

long after the diver took off did a spectator

on the bridge hear the splash?

Answer in units of s.

long after the diver took off did a spectator

on the bridge hear the splash?

Answer in units of s.

## Homework Equations

I used x = 1/2(Vo +V)T

## The Attempt at a Solution

I found the values T = 2.3474 and V = -23.00 m/s for the 1st and 2nd portion respectively. On the third portion, I set the Vo to 0 m/s, and the distance as 27m as per the first problem. I also used V = 343 m/s from the last portion.

By plugging these values into equation x = 1/2(Vo + V)T, and solving for T, I got the answer .157.

Adding this to 2.3474s, which was the time it took for the diver to reach the water, I got the equation T = 2.3474s+.157s = 2.50s

This was wrong though, so I want to find out what I'm doing wrong here.