Posted by **Lisa** on Tuesday, February 2, 2010 at 6:56pm.

A woman driving a care 14ft long is passing a truck 30 ft long. The truck is traveling at 50 miles per hour. How fast must the woman drive her car so that she can pass the truck completely in 6 seconds?

- Math -
**Reiny**, Tuesday, February 2, 2010 at 7:23pm
Assume the truck is standing still, then she must travel a total distance of (14+30)ft in 6 seconds

speed = distance/time = 44 ft/6 sec

44 ft/6 sec = 440 ft/60 sec

= 440 ft/min = 26400 ft/hr

= 5 mi/hr

So she must travel 5 mph faster than the truck, which was going at 50 mph

So she will have to travel 60 mph

## Answer this Question

## Related Questions

- Algebra - A woman driving a car 14 ft long is passing a truck 30 ft long. The ...
- physics - A truck is traveling with a uniform velocity 24 m/s, when it passes a ...
- Math/ Calculus Please HELP!!! - A truck driver, on assignment from the owner of ...
- Calculus/ Optimization - A truck driver, on assignment from the owner of the ...
- Math - A truck traveling at an average rate of 45 miles per hour leaves a rest ...
- Calculus - You are the owner of a delivery company with one truck. The trucks ...
- Calculus - You are the owner of a delivery company with one truck. The trucks ...
- Physics - A truck travels at a constant speed of 28.0 m/s in the fast lane of a ...
- Math - The speedometer of John's truck uses the revolutions of his tires to ...
- Calculus - A straight driveway perpendicular to a straight highway leads to a ...

More Related Questions