August 2013
Problem of the Month

Texting While Driving

An advertisement on TV for a Denver injury law firm states,
"What can happen in 5 seconds?   A driver can send a text message and
drive blindly down the road for 300 feet.
If you have been injured in those 5 seconds, call us at ..."

How fast would the driver mentioned in this TV ad have been going
(in mph to the nearest tenth)?

Solution to the Problem:

The driver would have been driving at a speed of 40.9 mph.

Use dimensional analysis to solve:

Correctly solved by:

1. James Alarie	Flint, Michigan
2. Chad Fore	Gate City, Virginia
3. Sascha Moline	Calgary, Alberta, Canada
4. William Vargo	Calgary, Alberta, Canada

Send any comments or questions to: David Pleacher