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3 years ago

Imagine a 10kg block moving with a speed of 20m/s. calculate the kinetic energy of this block

Physics

1 answer:

avanturin [10]3 years ago

7 0

$E_{c}=\frac{mv^2}{2}=2000J$

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2 years ago

What is the distance from axis about which a uniform, balsa-wood sphere will have the same moment of inertia as does a thin-wall

andrey2020 [161]

Answer:

$D_{s}$ ≈ 2.1 R

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I = ∫ r² dm

For bodies with symmetry this tabulated, the moment of inertia of the center of mass

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Spherical shell $Ic_{cm}$ = 2/3 M R²

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Let's start with the spherical shell, axis is along a diameter

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Is = $Is_{cm}$ + M [ $D_{s}$ ²

Is = Ic

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3 years ago

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