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Vladimir [108]
3 years ago
11

How far will a runner travel at an average speed of 5m/s for 20 minutes?

Physics
1 answer:
Sonja [21]3 years ago
6 0
Multiply the speed and time to get your answer of how far the runner travels
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The maximum displacement angle of the bob is 13⁰.

The given parameters;

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P.E = K.E\\\\mgh = \frac{1}{2} mv^2\\\\h = \frac{v^2}{2g} \\\\h = \frac{0.8^2}{2\times 10} \\\\h = 0.032 \ m

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cos \theta = \frac{L-h}{L} \\\\cos \theta = \frac{1.25 - 0.032}{1.25} \\\\\cos \theta = \frac{1.218}{1.25} \\\\cos \theta = 0.9744\\\\\theta = cos^{-1}(0.9744)\\\\\theta = 13\ ^0

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Learn more here:brainly.com/question/13981780

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