Translated 1.5.1-1.5.2;1.5.3-1.5.7
en/1.5.3.md
+2 −2
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| <meta name="date" content="2023-10" scheme="YYYY-MM"> | |||
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| <title>A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?</title> | |||
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| <header style="text-align:center;"> | |||
| <h2>Solutions of Savchenko Problems in Physics</h2> | |||
| <p class="author"> | |||
| Aliaksandr Melnichenka <br/> | |||
| October 2023 | |||
| </p> | |||
| </header> | |||
| <h3 id="back-link"><a href="../../#1.5">$\leftarrow$Back</a></h3> | |||
| <h3> Statement </h3> | |||
| <p> | |||
| $1.5.3$ | |||
| A wedge has a slope's angle of 30$^\circ$. A vertical rod goes down with velocity $v$ and pushes the wedge. What velocity will develope the wedge? | |||
| </p> | |||
| <center> | |||
| <figure> | |||
| <img src="statement.png" | |||
| loading="lazy" alt="1.5.3" width="200" /> | |||
| <figcaption> | |||
| For problem 1.5.3 | |||
| </figcaption> | |||
| </figure> | |||
| </center> | |||
| <h3>Solution</h3> | |||
| <p> | |||
| @@ -66,7 +66,7 @@ | |||
| Firstly, we suppose there is no any friction. For a better understanding of the problem, consider the following figure | |||
| </p> | |||
| − | <center><figure><img | ||
| + | <center><figure><img | ||
| src="1.5.3.png" loading="lazy" alt="1.5.3" width="200" /> | |||
| <figcaption> | |||
| Motion of wedge and rod | |||
| </figcaption> | |||
| </figure></center> | |||
| <p> | |||
| According to figure | |||
| $$\tan{30^\circ}=\frac{S_r}{S_w}$$ | |||
| and this relation is valid for velocities too because the motion is uniform (at constant speed) | |||
| $$\tan{30^\circ}=\frac{v}{v_w}=\frac{\sqrt{3}}{3}$$ | |||
| So, separating $v_w$ | |||
| @@ -82,7 +82,7 @@ | |||
| $$\boxed{v_w=v\sqrt{3}}$$ | |||
| </center> | |||
| − | <p style="text-align: right; font-style: italic; font-size: 14;"> | ||
| + | <p style="text-align: right; font-style: italic; font-size: 14;"> | ||
| BSc. Luis Daniel Fernández Quintana<br> | |||
| Physics Department (FCNE)<br> | |||
| Universidad de Oriente, Cuba<br> | |||
| </p> | |||
| <footer class="row container"> | |||
| <br> | |||
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| <small> © <strong>Savchenko Solutions</strong>, 2023-2024 <br></small> | |||
| </p> | |||
| <p> | |||
| <small>All rights belong to the authors. <br> Commercial use of materials - with the written permission of the authors. <br> aliaksandr@savchenkosolutions.com <br></small> | |||
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| <meta name="description" content="A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?"> | <meta name="description" content="A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?"> | ||
| <meta name="author" content="Aliaksandr Melnichenka"> | <meta name="author" content="Aliaksandr Melnichenka"> | ||
| <meta name="date" content="2023-10" scheme="YYYY-MM"> | <meta name="date" content="2023-10" scheme="YYYY-MM"> | ||
| <meta property="og:title" content="A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?"> | <meta property="og:title" content="A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?"> | ||
| <meta property="og:image" content="img/logo.png"> | <meta property="og:image" content="img/logo.png"> | ||
| <meta property="og:description" content="A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?"> | <meta property="og:description" content="A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?"> | ||
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| <title>A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?</title> | <title>A wedge has a slope's angle of 30^\circ. A vertical rod goes down with velocity v and pushes the wedge. What velocity will develope the wedge?</title> | ||
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| </head> | </head> | ||
| <body style=""> | <body style=""> | ||
| <header style="text-align:center;"> | <header style="text-align:center;"> | ||
| <h2>Solutions of Savchenko Problems in Physics</h2> | <h2>Solutions of Savchenko Problems in Physics</h2> | ||
| <p class="author"> | <p class="author"> | ||
| Aliaksandr Melnichenka <br/> | Aliaksandr Melnichenka <br/> | ||
| October 2023 | October 2023 | ||
| </p> | </p> | ||
| </header> | </header> | ||
| <h3 id="back-link"><a href="../../#1.5">$\leftarrow$Back</a></h3> | <h3 id="back-link"><a href="../../#1.5">$\leftarrow$Back</a></h3> | ||
| <h3> Statement </h3> | <h3> Statement </h3> | ||
| <p> | <p> | ||
| $1.5.3$ | $1.5.3$ | ||
| A wedge has a slope's angle of 30$^\circ$. A vertical rod goes down with velocity $v$ and pushes the wedge. What velocity will develope the wedge? | A wedge has a slope's angle of 30$^\circ$. A vertical rod goes down with velocity $v$ and pushes the wedge. What velocity will develope the wedge? | ||
| </p> | </p> | ||
| <center> | <center> | ||
| <figure> | <figure> | ||
| <img src="statement.png" | <img src="statement.png" | ||
| loading="lazy" alt="1.5.3" width="200" /> | loading="lazy" alt="1.5.3" width="200" /> | ||
| <figcaption> | <figcaption> | ||
| For problem 1.5.3 | For problem 1.5.3 | ||
| </figcaption> | </figcaption> | ||
| </figure> | </figure> | ||
| </center> | </center> | ||
| <h3>Solution</h3> | <h3>Solution</h3> | ||
| <p> | <p> | ||
| @@ -66,7 +66,7 @@ | |||
| Firstly, we suppose there is no any friction. For a better understanding of the problem, consider the following figure | Firstly, we suppose there is no any friction. For a better understanding of the problem, consider the following figure | ||
| </p> | </p> | ||
| <center><figure><img |
<center><figure><img | ||
| src="1.5.3.png" loading="lazy" alt="1.5.3" width="200" /> | src="1.5.3.png" loading="lazy" alt="1.5.3" width="200" /> | ||
| <figcaption> | <figcaption> | ||
| Motion of wedge and rod | Motion of wedge and rod | ||
| </figcaption> | </figcaption> | ||
| </figure></center> | </figure></center> | ||
| <p> | <p> | ||
| According to figure | According to figure | ||
| $$\tan{30^\circ}=\frac{S_r}{S_w}$$ | $$\tan{30^\circ}=\frac{S_r}{S_w}$$ | ||
| and this relation is valid for velocities too because the motion is uniform (at constant speed) | and this relation is valid for velocities too because the motion is uniform (at constant speed) | ||
| $$\tan{30^\circ}=\frac{v}{v_w}=\frac{\sqrt{3}}{3}$$ | $$\tan{30^\circ}=\frac{v}{v_w}=\frac{\sqrt{3}}{3}$$ | ||
| So, separating $v_w$ | So, separating $v_w$ | ||
| @@ -82,7 +82,7 @@ | |||
| $$\boxed{v_w=v\sqrt{3}}$$ | $$\boxed{v_w=v\sqrt{3}}$$ | ||
| </center> | </center> | ||
| <p style="text-align: right; font-style: italic; font-size: 14;"> |
<p style="text-align: right; font-style: italic; font-size: 14;"> | ||
| BSc. Luis Daniel Fernández Quintana<br> | BSc. Luis Daniel Fernández Quintana<br> | ||
| Physics Department (FCNE)<br> | Physics Department (FCNE)<br> | ||
| Universidad de Oriente, Cuba<br> | Universidad de Oriente, Cuba<br> | ||
| </p> | </p> | ||
| <footer class="row container"> | <footer class="row container"> | ||
| <br> | <br> | ||
| <p> | <p> | ||
| <small> © <strong>Savchenko Solutions</strong>, 2023-2024 <br></small> | <small> © <strong>Savchenko Solutions</strong>, 2023-2024 <br></small> | ||
| </p> | </p> | ||
| <p> | <p> | ||
| <small>All rights belong to the authors. <br> Commercial use of materials - with the written permission of the authors. <br> aliaksandr@savchenkosolutions.com <br></small> | <small>All rights belong to the authors. <br> Commercial use of materials - with the written permission of the authors. <br> aliaksandr@savchenkosolutions.com <br></small> | ||
| </p> | </p> | ||
| </footer> | </footer> | ||
| </body> | </body> | ||
| </html> | </html> | ||
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