Question

5.
Discuss the necessity of radius of
gyration. Define it. On what factors does
it depend and it does not depend? Can
you locate some similarity between the
centre of mass and radius of gyration?
24​

Answer 1

Explanation:

The radius of gyration depends on various factors like the size and shape of the body, configuration of its axis of rotation, the body's position and distribution of the mass with regard to its axis of rotation. The radius of gyration is the root mean square distance of the object from its center of gravity.

Answer 2

$<div class="container"> <div class="lamp"> <div class="stand"></div> <div class="bulb"></div> <input type="checkbox"> </div> </div> <style> body { background-color: purple; } </style> <style> ​body{ background-color:pink; padding: 0; margin: 0; } .container{ height: 550px; width: 350px; overflow: hidden; position: absolute; transform: translate(-50%,-50%); top:50%; left: 50%; } .lamp{ height: 30px; width: 140px; background-color: #040e15; border-radius: 8px 8px 0 0; position: absolute; bottom: 0; right: 15px; } .lamp:before{ content: ""; position: absolute; height: 5px; width: 60px; background-color:rgba(255,255,255,0.5); top: 8px; left: 8px; border-radius: 8px; } .stand{ height: 120px; width: 12px; background-color: #040e15; position: absolute; top: -110px; right: 35px; transform: rotate(20deg); z-index: -1; } .stand:before{ content: ""; height: 140px; width: 12px; background-color: #040e15; position: absolute; bottom: 85px; right: 56px; transform: rotate(-60deg); } .stand:after{ content: ""; position: absolute; height: 25px; width: 25px; background-color: #fee669; border-radius: 50%; left: -7px; bottom: 105px; } .bulb{ height: 50px; width: 100px; background-color: #fec93d; position: absolute; bottom: 205px; border-radius: 50px 50px 0 0; transform: rotate(45deg); left: -42px; } .bulb:before{ content: ""; position: absolute; height: 25px; width: 25px; background-color: #fec93d; border-radius: 50%; left: 45px; top: -15px; } .bulb:after{ content: ""; position: absolute; height: 10px; width: 110px; background-color: #fee669; top: 45px; right: -5px; border-radius: 5px; } input[type="checkbox"]{ -webkit-appearance:none; height: 12px; width: 18px; background-color: #fec93d; position: absolute; bottom: 26px; left: 15px; border-radius: 3px 3px 0 0; z-index: -1; outline: none; cursor: pointer; } input[type="checkbox"]:before{ content: ""; position: absolute; height: 0; width: 65px; border-bottom: 280px solid rgba(255,255,255,0.5); border-left: 45px solid transparent; border-right: 45px solid transparent; transform: rotate(45deg); bottom: -57px; right: 72px; display: none; } input[type="checkbox"]:checked{ height: 8px; } input[type="checkbox"]:checked:before{ display: block; } a{ color: white; font-family: "Rubik",sans-serif; position:absolute; right:20px ; top:20px; border:2px solid white; text-decoration:none; } @media screen and (min-width: 451px) { a{ font-size: 25px; padding:8px 12px 8px 12px; } } @media screen and (max-width: 450px) { a{ font-size: 18px; padding:5px 8px 5px 8px; } } </style>$