2 years ago

A situation known as ( blank)

2 answers:

7 0

Apparent weightlessness

Lisa [10]2 years ago

6 0

Answer:

Apparent weightlessness

Explanation:

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Andreas93 [3]

Answer:

$\frac{dx}{dt}=7.14m/s$

Explanation:

As is showed at the figure annexed, we can solve this problem finding the relation between the girl displacement and the shadow displacement.

Relation the triangles (see figure annexed):

$\frac{x}{H}=\frac{x-y}{h}\\x=\frac{H}{H-h}y$

We derive in order to find the speed of the shadow, because:

dx/dt: shadow's speed

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$\frac{dx}{dt} =\frac{25}{25-4}*6=7.14m/s$

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