3 years ago

A vase of flowers is stationary on a table. which of the following statements best explains why the vase is stationary?

Physics

1 answer:

goldenfox [79]3 years ago

7 0

D. The table pushes up on the vase with the same amount of force as gravity pulling it down.

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Final speed of block $v_{f} = 0$ $\frac{m}{s}$

Coefficient of kinetic friction $\mu _{k} = 0.62$

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Work done by frictional force is equal to change in energy,

$\mu _{k} mgd \cos 28.4 = \Delta K - \Delta U$

Where $\Delta U = mg d\sin 28.4$

$\mu _{k} mgd \cos 28.4 = \frac{1}{2}mv_{i} ^{2} - mgd\sin 28.4$

$\mu _{k} mgd \cos 28.4 +mgd\sin 28.4 = \frac{1}{2}mv_{i} ^{2}$

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