3 years ago

Is 5/2 rational or irrational

Mathematics

1 answer:

raketka [301]3 years ago

4 0

Answer:

rational

Step-by-step explanation:

Since this can be written as the ratio of integers, this is a rational number

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Step-by-step explanation:

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Speed of runner , $V=\frac{D}{T}=\frac{400}{100}\, \frac{m}{s}= 4.0\, \frac{m}{s}$

Now centripetal acceleration is given by

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$\therefore a_c=\frac{4^{2}}{37}\, \frac{m}{s^{2}}=0.432\, \frac{m}{s^{2}}$

Thus her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

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