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Maru [420]
3 years ago
10

Suppose a runner completes one lap around a 400-m track in a time of 50 s. calculate the magnitude of the average velocity of th

e runner. express your answer in meters per second to the nearest integer.
Mathematics
2 answers:
maks197457 [2]3 years ago
6 0

Step-by-step explanation:

It is given that,

Distance covered by the runner, d = 400 m

Time taken to complete one lap, t = 50 s

We need to find the magnitude of the average velocity of the runner. Total displacement divided by total time taken is called the average velocity of the runner. Here, the total displacement is 0 as runner come back to same point.

It is given by :

v=\dfrac{displacement}{time}

v=\dfrac{0}{50}

v = 0

So, the average velocity of the runner is 0. Hence, this is the required solution.

marysya [2.9K]3 years ago
5 0
400:50=8(m/s)
........................
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Answer:

more than 15.40 cm and less than  14.60 cm

Step-by-step explanation:

A manufacturer of bolts has a quality control policy that requires it destroy any bolts that are more than 4 standard deviations from the mean.

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standard deviation= 0.10 cm

4 standard deviation from mean= 15±(4×0.10)

therefore, bolts of length more than 15+0.4, and less than 15-0.4 will be destroyed

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3 years ago
There are 81 athletes who joined a parade. Four-ninths of them are basketball players. How many basketball players joined the pa
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36

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2 years ago
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Sedbober [7]

Answer:

g = \frac{k}{t-v}

Step-by-step explanation:

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3 years ago
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8 0
2 years ago
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