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3 years ago

Kinetic energy is the energy an object has due to its _____.

Physics

2 answers:

leva [86]3 years ago

9 0

Answer:

motion

Explanation:

Lostsunrise [7]3 years ago

3 0

Answer: Kinetic energy is the energy an object has due to its __movement of bodies.___.

Explanation:

What is Kinetic Energy:

Kinetic energy is a type of energy that is related to the movement of bodies.

The result of kinetic energy is intrinsically linked to the mass value of the object and its velocity of movement.

For example, if two objects have the same velocity but different masses, the body with the heaviest mass will have the highest kinetic energy.

Normally, in order for an object to gain initial movement, it is necessary to apply a force that impels it (an action which in physics is known as “work”).

According to the Kinetic Energy Theorem, "the work of the resulting force is measured by the variation of the kinetic energy."

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3 years ago

A light horizontal spring has a spring constant of 138 N/m. A 3.35 kg block is pressed against one end of the spring, compressin

BARSIC [14]

Answer:

$U_k = 0.113$

Explanation:

using the law of the conservation of energy:

$E_i -E_f=W_f$

$\frac{1}{2}Kx^2=NU_kd$

where K is the spring constant, x is the spring compression, N is the normal force of the block, $U_k$ is the coefficiet of kinetic friction and d is the distance.

Also, by laws of newton, N is calculated by:

N = mg

N = 3.35 kg * 9.81 m/s

N = 32.8635

So, Replacing values on the first equation, we get:

$\frac{1}{2}(138)(0.123)^2= (32.8635)U_k(0.281m)$

solving for $U_k$ :

$U_k = 0.113$

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3 years ago

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Salsk061 [2.6K]

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