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cupoosta [38]
2 years ago
6

What is kinematics? ⛄​

Physics
2 answers:
Makovka662 [10]2 years ago
5 0

Answer:the study of motion of a system of bodies without directly considering the forces or potential fields affecting the motion.

Explanation:

Daniel [21]2 years ago
3 0

<u>the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.</u>

<u>#</u><u> </u><u>the features or properties of motion in an object.</u>

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A physical therapy exercise has a person shaking a 5.00 kg weight up and down rapidly. if the barbell is moving at 4.50 m/s, wha
Ivanshal [37]

The magnitude of the force required to stop the weight in 0.333 seconds is 67.6 N.

<h3>Magnitude of required force to stop the weight</h3>

The magnitude of the force required to stop the weight in 0.333 seconds is calculated by applying Newton's second law of motion as shown below;

F = ma

F = m(v/t)

F = (mv)/t

F = (5 x 4.5)/0.333

F = 67.6 N

Thus, the magnitude of the force required to stop the weight in 0.333 seconds is 67.6 N.

Learn more about force here: brainly.com/question/12970081

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7 0
2 years ago
Sally is trying to lift a heavy box, but is not strong enough to lift it.  Would the force that she is applying to the box be an
mestny [16]
If you give it unbalanced force it would go up and if you can't give it enough it will stay a balanced force
 
3 0
3 years ago
A boat carving people more than its capacity is at risk of sinking, why?​
Y_Kistochka [10]

Answer:

Explained below.

Explanation:

For a boat or any object to float on water, it's density must be less than that of water.

Now, when the maximum capacity of people to be carried by the boat is exceeded, it's possible that the maximum mass of people will also be exceeded depending on the mass of the people in the boat.

Now, we know that; density = mass/volume.

Thus, the higher the mass of the people, the higher the density and the higher the density, the more likely it is to be above that of water and the more likely it is to sink.

7 0
3 years ago
A block weighing 3.7 kg is suspended from the ceiling of a truck trailer by a hanging bungee cord. The cord has a cross-sectiona
sweet [91]

Answer:

Y = 2.27 \times 10^{10} N/m^2

Explanation:

Natural length of the string is given as

L_o = 43 cm

length of the string while block is hanging on it

L = 53 cm

extension in length is given as

\Delta L = 10 cm

now we have strain in the string is given as

strain = \frac{\Delta L}{L}

strain = \frac{{10 cm}{43 cm}

strain = 0.23

similarly we will have cross-sectional area of the string is given as

A = 40 \times 10^{-6} m^2

now the stress in the string is given as

Stress = \frac{T}{A}

Stress = \frac{mg}{A}

Stress = \frac{3.7 \times 9.81}{40 \times 10^{-6}}

stress = 9.07 \times 10^5 N/m^2

Now Young's Modulus is given as

Y = \frac{stress}{strain}

Y = \frac{9.07 \times 10^5}{40\times 10^{-6}}

Y = 2.27 \times 10^{10} N/m^2

5 0
3 years ago
a force is applied to an object at rest with a mass of 100 kg. the same force is applied to an object at rest with a mass of 1 k
Dafna1 [17]
The object with the mass ok 1kg will move more quickly because it is lighter than the 100kg object
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4 years ago
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