3 years ago

HELP!! Why is motion not considered a force?

Physics

2 answers:

Olegator [25]3 years ago

8 0

Answer:

because force need motion

Explanation:

Liono4ka [1.6K]3 years ago

7 0

Answer:

There cannot be a force without motion and if there is no motion, then there is no force acting.

Explanation:

A force is a vector that causes an object with mass to accelerate.

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den301095 [7]

I would say that this is the first law of thermodynamics.

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dezoksy [38]

Answer:

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......

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3 years ago

Can anybody help me solve this problem? Thank you so much!

ser-zykov [4K]

Please ignore my comment -- mass is not needed, here is how to solve it. pls do the math

at bottom box has only kinetic energy
ke = (1/2)mv^2
v = initial velocity
moving up until rest work done = Fs
F = kinetic fiction force = uN = umg x cos(a)
s = distance travel = h/sin(a)
h = height at top
a = slope angle
u = kinetic fiction
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(1/2)mv^2 = umgh x cot(a)
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4 0

3 years ago

Atoms tend to be stable and nonreactive if they have six valence electrons.

Ludmilka [50]

Answer:

True

Explanation:

4 0

3 years ago

What is the length of the shadow cast on the vertical screen by your 10.0 cm hand if it is held at an angle of θ=30.0∘ above hor

Alchen [17]

Answer:

The length is $D = 5 \ cm$

Explanation:

From the question we are told that

The length of the hand is $l = 10.0 \ cm$

The angle at the hand is held is $\theta = 30 ^o$

Generally resolving the length the length of the hand to it vertical component we obtain that the length of the shadow on the vertical wall is mathematically evaluated as

$D = l * sin(\theta )$

substituting values

$D = 10 * sin (30)$

$D = 5 \ cm$

5 0

4 years ago