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vlada-n [284]
3 years ago
5

Recalculate 100 km/h to m/s

Physics
1 answer:
qwelly [4]3 years ago
4 0

= 27.777

Explanation:

A kilometer has 1,000 meters, and an hour has 3,600 seconds, so 100 kilometers per hour is: 100 x 1,000 / 3,600 = 27.777... m/s.

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Solution :

From the given data,

For the spherical shell is $\frac{k^2}{R^2}= \frac{2}{3}$

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Therefore,

$a =\frac{g \sin \theta}{1+ \frac{k^2}{R^2}} $

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  $= \frac{3}{5} g \sin \theta$

  = 0.6 x 9.81 x sin ( 29.7)

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$h = \frac{1}{2} a(\Delta t)^2$

$\Delta t = \sqrt{\frac{2h}{a}}$

$\Delta t = \sqrt{\frac{2 \times 2.9}{2.913}}$

Δt = 1.411 s

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Using Pythogorus' theorem

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