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ziro4ka [17]
3 years ago
10

How long would it take you too run the 100m sprint if from rest you accelerate at 2m/s/s for the whole race?

Physics
1 answer:
fredd [130]3 years ago
4 0

Answer:

10 s

Explanation:

Given:

Δx = 100 m

v₀ = 0 m/s

a = 2 m/s²

Find: t

Δx = v₀ t + ½ at²

100 m = (0 m/s) t + ½ (2 m/s²) t²

t = 10 s

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Scientists studying an anomalous magnetic field find that it is inducing a circular electric field in a plane perpendicular to t
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     E (2 \pi r ) =  (\pi r^2 ) [\frac{dB}{dt} ]

      E  =   \frac{r}{2}  [\frac{dB}{dt} ]

       [\frac{dB}{dt} ] = \frac{E}{ \frac{r}{2} }

substituting values

      [\frac{dB}{dt} ] = \frac{3.5 *10^{-3}}{ \frac{15}{2} }

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