Math Puzzle - Running on sand

Math Puzzle - Running on sand

Assessment

Interactive Video

Physics, Science

University

Hard

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The video tutorial explores a problem of determining the fastest path to run from point A to point B on a beach, considering speed increases closer to the water. Two paths are analyzed: one with a constant speed and another along a slope. Calculations involve integration and the use of Pythagoras' theorem. The tutorial concludes that path two is faster and suggests using an Excel spreadsheet for further exploration.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What factors influence the speed of running along the beach?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the formula V = 5y + 10 in the context of the problem.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the two paths considered in the problem, and how do they differ?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How is the time taken to run along path one calculated?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the integration process used to find the time taken for path two.

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

What conclusion can be drawn about the fastest path based on the calculations?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

How can numerical confirmation of the answers be achieved according to the text?

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