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3 years ago

What is the kinetic energy of an object that has a mass of 12 kg and moves with a velocity of 10 m/s

Physics

2 answers:

WITCHER [35]3 years ago

6 0

Answer:

600 J

Explanation:

The formula to find the kinetic energy of an object is $\frac{1}{2}mV^2$

m = mass in kg
V = velocity in m/s
KE is measured in Joules just as all other forms of energy.

Now, let's plug in the variables we're given and simplify.

$\frac{1}{2}(12)(10)^2$
$\frac{1}{2}(12)(100)$
$(6)(100)$
$(600)$

Thus, the answer is 600 Joules.

ad-work [718]3 years ago

6 0

Answer:

600 J

Explanation:

m = 12 kg

v = 10 m/s

KE = 1/2mv²

= 1/2 x 12 x 10 x 10

= 6 x 100

= 600 J

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Answer:

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Explanation:

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If we approximate the differential $\frac{d\overrightarrow{p}}{dt}$ to $\frac{\Delta\overrightarrow{p}}{\Delta t}$ :

$\sum\overrightarrow{F}=\frac{\Delta\overrightarrow{p}}{\Delta t}$

Using that linear momentum is mass times velocity:

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Solving for $\Delta\overrightarrow{v}$ :

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3 years ago

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Gekata [30.6K]

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7 0

4 years ago

Vectors A and B lie in the xy ‑plane. Vector A has a magnitude of 17.1 and is at an angle of 150.5∘ counterclockwise from the +x

IRINA_888 [86]

Answer:

A = -14.87 i ^ + 8.42 j ^ + 0 k ^

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Explanation:

For this exercise let's use trigonometry by decomposing to vectors

vector A

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Sin 150.5 = $A_{y}$ / A

cos 150.5 = Ax / A

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A = -14.87 i ^ + 8.42 j ^ + 0 k ^

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$B_{y}$ = 28.1 sin 205.3

Bₓ = 28.1 cos 205.3

B_{y} = -12.009

Bₓ = -25.405

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