Homework Help: Physical Science

Posted by J on Tuesday, February 1, 2011 at 5:21pm.

If a person is traveling at a rate of seventy five miles per hour in a straight line, how far would they travel in three seconds?

Physical Science - Damon, Tuesday, February 1, 2011 at 5:25pm
75 *5280 feet/3600 seconds * 3 seconds = 330 feet
(about 100 meters)
Physical Science - Ford, Tuesday, February 1, 2011 at 5:53pm
To solve this problem we shall use the formula that relates distance, speed and time.

speed = distance/time
Or, speed*time = distance

Now, speed = 75miles/hour = 75miles/(60*60)second = 75miles/3600second = 0.020833mile/second

So, the distance travelled is = (.020833mile/second)*3second
= 0.062499mile or 0.0625mile

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