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3 years ago

What is the relationship between kinetic and potential energy of a falling object

Physics

1 answer:

borishaifa [10]3 years ago

5 0

Answer:

See the explanation below.

Explanation:

According to the law of energy conservation. This can be transformed from potential energy to kinetic or vice versa.

For example, when you have a body at rest at a height with respect to the ground level, this body possesses potential energy with respect to the ground, but the moment that the body falls the potential energy decreases as it loses height with respect to the ground, but as the potential energy decreases, the kinetic energy increases, that is to say, the potential energy is transformed into kinetic energy as the body is falling.

As the energy relationship is maintained we can say that the potential and kinetic energies are equal.

$E_{pot}=m*g*h\\E_{kin}=\frac{1}{2} *m*v^{2} \\E_{pot}=E_{kin}$

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The kinetic energy of an object is directly proportional to its mass, and to the square of its velocity.

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A car goes from point A to point B, five miles away and then returns to point A. The car is going 15 mph.

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2 years ago

In this problem, you will answer several questions that will help you better understand the moment of inertia, its properties, a

scoundrel [369]

Answer:

a) Total mass form, density and axis of rotation location are True

b) I = m r²

Explanation:

a) The moment of inertia is the inertia of the rotational movement is defined as

I = ∫ r² dm

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In general, mass is expressed through density

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From these two equations we can see that the moment of inertia depends on mass, density and distance

Let's examine the statements, the moment of inertia depends on

- Linear speed False

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- density True

- axis of rotation location True

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I = m r²

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2 years ago

Why is conserving energy resources not a simple problem with a simple solution?

anyanavicka [17]

Answer:

Because the uncontrolled and unreasonable use of energy resources in the past few decades has led to the depletion of conventional type of resources. Although, measures are taken at the government levels to control the energy consumption, these attempts only meet with little success. Public awareness is the only way to successfully deal with this problem.

Explanation:

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3 years ago

Read 2 more answers

A skydiver jumps from an airplane that is moving at 50 meters per second at a height of 1,000 meters what describes the skydiver

kkurt [141]

Answer:

11060M Joules, where M is the mass of the diver in kg

Explanation:

Mass of the skydiver missing, we're assuming it's M.

It's total energy is the sum of the contribution of his kinetic energy (K)- since he's moving at 50 m/s, and it's potential energy (U), since he's subject to earth gravity.

Energy is the sum of the two, so $E = K+U= \frac 12 M v^2 + Mgh = M (\frac 12 \cdot 50^2 + 9.81\cdot 1000) = M ( 1250 + 9810) = 11060\cdot M$

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2 years ago