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mina [271]
3 years ago
11

Applied force diagram

Physics
1 answer:
valina [46]3 years ago
3 0

Answer:

It is generally customary in a free-body diagram to represent the object by a box and to draw the force arrow from the center of the box outward in the direction that the force is acting. An example of a free-body diagram is shown at the right. T he free-body diagram above depicts four forces acting upon the object.

Explanation:

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stira [4]

Answer:

Explanation:

Given

acceleration is given by

a=-g-c_Dv^2

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\dot{y}=v

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ds=\frac{v}{a}dv

\int ds=\int \frac{v}{-g-0.001v^2}dv

\Rightarrow Let -g-0.001v^2=t

-0.001\times 2vdv=dt

vdv=-\frac{dt}{0.002}

at\ v_0=50\ m/s,\ t=-g-0.001(50)^2

t=-g-2.5

at v=0,\ t=-g

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s=\frac{1}{0.002}lnt|_{-g}^{-g-2.5}

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s=113.608\ m

when air drag is neglected maximum height reached is

h=\frac{v_0^2}{2g}

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A boy in a wheelchair (total mass 54.5 kg) has speed 1.40 m/s at the crest of a slope 2.10 m high and 12.4 m long. At the bottom
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Answer:

630.75 j

Explanation:

from the question we have the following

total mass (m) = 54.5 kg

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final speed (Vf) = 6.6 m/s

frictional force (FF) = 41 N

height of slope (h) = 2.1 m

length of slope (d) = 12.4 m

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work done (wd) = ?

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wd + mgh = (0.5 mVf^2) - (0.5 mVi^2) + (FF x  d)

wd = (0.5 mVf^2) - (0.5 mVi^2) + (FF x  d) - (mgh)

where wd = work done

m = mass

h = height

g = acceleration due to gravity

FF = frictional force

d = distance

Vf and Vi = final and initial velocity

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A<span> barometer is used to measure air pressure. </span>
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Maslowich

Answer:

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Answer:

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