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<meta name="description" content="Figure shows a blurred photograph of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine from this photograph the speed of the airplane. The shutter exposure time is 0.1 s. The shape of the airplane is shown in the figure with a dashed line.">
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<meta property="og:description" content="Figure shows a blurred photograph of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine from this photograph the speed of the airplane. The shutter exposure time is 0.1 s. The shape of the airplane is shown in the figure with a dashed line.">
<title>Figure shows a blurred photograph of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine from this photograph the speed of the airplane. The shutter exposure time is 0.1 s. The shape of the airplane is shown in the figure with a dashed line.</title>
Figure$^{*)}$ shows a "blurred photograph" of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine
from this "photograph" the speed of the airplane. The shutter exposure time is 0.1 s. The shape
of the airplane is shown in the figure with a dashed line.
</p>
<center>
<figure>
<img src="statement.png"
loading="lazy" alt="1.1.1" width="150" />
<figcaption>
For the 1.1.1 problem
</figcaption>
</figure>
</center>
<h4>Solution</h4>
<center>
<figure>
<img src="1.1.1.png"
loading="lazy" alt="1.1.1" width="250" />
<figcaption>
1.1.1. Airplane photo
</figcaption>
</figure>
</center>
<p>
To find the velocity of the airplane it is necessary to determine the vector of its displacement for the time $T$, during which the shutter of the camera is open. Let us select the initial point $1$ in the photograph and determine the distance it will move during the time $T$. The length of the airplane must be subtracted from the total length of the photograph. Taking into account the scale, the modulus of displacement will be
$$l=50-30 = 20 \;m$$
For the 0.1 s aiplane covered a distance of $20\; m$, which corresponds to velosity of
<small>All rights belong to the authors. <br> Commercial use of materials - with the written permission of the authors. <br> astrosander01@gmail.com <br></small>
<meta name="keywords" content="Savchenko Problems in Physics, Savchenko solutions, physics problems, physics olympiad preparation, IPhO, Jaan Kalda">
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<meta name="description" content="The largest dataset of solutions of 'Savchenko. Problems in Physics'. Savchenko’s Problems in General Physics is widely used to prepare for olympiads and it is a useful tool to
<meta name="description" content="Figure shows a blurred photograph of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine from this photograph the speed of the airplane. The shutter exposure time is 0.1 s. The shape of the airplane is shown in the figure with a dashed line.">
master and sharpen your skills and techniques in comptetitive problem solving. Some of these problems were a source
of inspiration for Jaan Kalda’s handouts and to some NBPhO problems. You may find problems from old IPhO
<meta property="og:title" content="Figure shows a blurred photograph of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine from this photograph the speed of the airplane. The shutter exposure time is 0.1 s. The shape of the airplane is shown in the figure with a dashed line.">
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<meta property="og:description" content="Figure shows a blurred photograph of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine from this photograph the speed of the airplane. The shutter exposure time is 0.1 s. The shape of the airplane is shown in the figure with a dashed line.">
<title>Figure shows a blurred photograph of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine from this photograph the speed of the airplane. The shutter exposure time is 0.1 s. The shape of the airplane is shown in the figure with a dashed line.</title>
Figure$^{*)}$ shows a "blurred photograph" of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine
Figure$^{*)}$ shows a "blurred photograph" of a jet airplane in flight. The length of the airplane is 30 m, the length of its nose is 10 m. Determine
from this "photograph" the speed of the airplane. The shutter exposure time is 0.1 s. The shape
from this "photograph" the speed of the airplane. The shutter exposure time is 0.1 s. The shape
of the airplane is shown in the figure with a dashed line.
of the airplane is shown in the figure with a dashed line.
</p>
</p>
<center>
<center>
<figure>
<figure>
<img src="statement.png"
<img src="statement.png"
loading="lazy" alt="1.1.1" width="150" />
loading="lazy" alt="1.1.1" width="150" />
<figcaption>
<figcaption>
For the 1.1.1 problem
For the 1.1.1 problem
</figcaption>
</figcaption>
</figure>
</figure>
</center>
</center>
<h4>Solution</h4>
<h4>Solution</h4>
<center>
<center>
<figure>
<figure>
<img src="1.1.1.png"
<img src="1.1.1.png"
loading="lazy" alt="1.1.1" width="250" />
loading="lazy" alt="1.1.1" width="250" />
<figcaption>
<figcaption>
1.1.1. Airplane photo
1.1.1. Airplane photo
</figcaption>
</figcaption>
</figure>
</figure>
</center>
</center>
<p>
<p>
To find the velocity of the airplane it is necessary to determine the vector of its displacement for the time $T$, during which the shutter of the camera is open. Let us select the initial point $1$ in the photograph and determine the distance it will move during the time $T$. The length of the airplane must be subtracted from the total length of the photograph. Taking into account the scale, the modulus of displacement will be
To find the velocity of the airplane it is necessary to determine the vector of its displacement for the time $T$, during which the shutter of the camera is open. Let us select the initial point $1$ in the photograph and determine the distance it will move during the time $T$. The length of the airplane must be subtracted from the total length of the photograph. Taking into account the scale, the modulus of displacement will be
$$l=50-30 = 20 \;m$$
$$l=50-30 = 20 \;m$$
For the 0.1 s aiplane covered a distance of $20\; m$, which corresponds to velosity of
For the 0.1 s aiplane covered a distance of $20\; m$, which corresponds to velosity of
<small>All rights belong to the authors. <br> Commercial use of materials - with the written permission of the authors. <br> astrosander01@gmail.com <br></small>
<small>All rights belong to the authors. <br> Commercial use of materials - with the written permission of the authors. <br> astrosander01@gmail.com <br></small>
