Distance Problem 2 - Uniform Motion rt=d
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Part of video series
Lesson Description:
Solves this word problem using rt=d formula: A jogger started running at an average speed of 6 mph. Half an hour later, another runner started running after him starting from the same place at an average speed of 7 mph. How long will it take for the runner to catch up to the jogger?
Answer: 3 hours
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you solve uniform motion problems?
- How do you solve equations using the formula rate * time = distance?
- How can you draw and use pictures to solve word problems using the formula d = rt?
- How can you come up with an equation to solve a uniform motion problem?
- How can you use a chart to solve a uniform motion problem?
- How can you check your solutions to a uniform motion problem?
- If a jogger started running an average speed of 6 miles per hour, half an hour later, another runner started running after him from the same place at an average speed of 7 mph, how long will it take for the runner to catch up to the jogger?
- If you know the rates of two runners, how do you find an expression for their times and distances run?
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Staff Review
This is another tough uniform rate word problem in which a chart and a drawing are used to write an equation in order to find out the time it takes a runner to catch up to a jogger. This is a great tutorial on a tough concept. -
