2. A particle starts from the origin, goes along the X-axis
to the point (20 m, 0) and then returns along the same
line to the point (–20 m, 0). Find the distance and
displacement of the particle during the trip.R.
Accelera
Answers
Explanation:
Distance is the total lenght covered while displacement is the shortest distance between initial and final point.
so, here distance covered = 20+20+20
= 60m
and , displacement = 20 m
<!DOCTYPE html>
<html lang="en">
<head>
<title>Shinchan</title>
</head>
<body>
<div class="face">
<div class="forhead"></div>
<div class="cheeks"></div>
<div class="ear"></div>
<div class="eyebrow left"></div>
<div class="eyebrow right"></div>
<div class="eye left"></div>
<div class="eye right"></div>
<div class="mouth"></div>
<div class="shy"></div>
<div class="shy right"></div>
</div>
<style>
body {
background:#3e505e
}
.face {
height: 600px;
width: 350px;
position: relative;
margin: auto;
}
.face:before {
content:'';
background:black;
height:122px;
width:95px;
position:absolute;
z-index:6;
left:210px;
top:29px;
border-radius:100% 190% 100% 0%;
transform: rotate(-20deg);
}
.face:after {
content:'';
width:230px;
height:180px;
background:black;
content:'';
transform: rotate(-8deg);
position:absolute;
border-radius:100% 160% 100% 0%;
left:70px;
bottom:-14px;
top:10px;
z-index:5;
}
.forhead, .forhead:after {
content: '';
width: 220px;
height: 181px;
background: #fbc6a3;
content: '';
transform: rotate(-3deg);
position: absolute;
border-radius: 60% 120% 50% 0%;
left: 67px;
bottom: -14px;
top: 21px;
z-index: 6;
}
.forhead:after {
width: 160px;
height: 150px;
border-radius: 150% 174% 159% 100%;
transform: rotate(-20deg);
top: 13px;
left: 59px;
border-top: 15px solid #fbc6a3;
}
.forhead:before{
background:#fbc6a3;
width:60px;
height:10px;
content:'';
position:absolute;
z-index:7;
left:105px;
top:9px;
transform: rotate(13deg);
border-radius:100%
}
.ear {
width:60px;
height:50px;
background:#fbc6a3;
z-index:7;
position:absolute;
border-radius:300% 190% 200% 100%;
transform: rotate(-20deg);
top:110px;
left:285px
}
.cheeks {
background: #fbc6a3;
width: 280px;
height: 100px;
border-radius: 50px 0px 50px 40px;
transform: rotate(-3deg);
position: relative;
content: 'a';
top: 108px;
left:10px
}
.cheeks:after {
width: 297px;
height: 100px;
background: #fbc6a3;
content: '';
transform: rotate(-3deg);
position: absolute;
border-radius: 100% 100% 100% 100%;
left: 1px;
bottom: -14px;
}
.eye {
width:40px;
height:40px;
position:relative;
background:black;
border-radius:100%;
animation: close-eye 4s none .2s infinite;
}
.eye:after {
content:'';
position:absolute;
background:white;
width:15px;
height:15px;
border-radius:100%;
left:17px;
top:12px;
}
.eye:before {
content:'';
position:absolute;
width:70px;
height:60px;
border-radius:100%;
border-top:2px solid black;
left:-20px;
margin-top:-20px;
}
.eye.left,.eye.right {
position:absolute;
top:80px;
left:100px;
z-index:10;
}
.eye.right {
left:190px;
top:90px;
}
.eyebrow {
animation: eyebroani 2s linear .2s infinite;
}
.eyebrow,.eyebrow:after {
position:absolute;
width:20px;
height:60px;
background:black;
z-index:8;
border-radius:15px;
transform: rotate(40deg);
top:10px;
left:90px;
}
.eyebrow:after {
content:'';
transform: rotate(-100deg);
left:19px;
margin-top:-23px;
top:auto;
}
.eyebrow.right {
left:180px;
top:8px;
transform: rotate(50deg);
}
.mouth {
position:absolute;
width:40px;
height:40px;
background:#76322f;
border-radius:100%;
top:180px;
left:50px;
z-index:8;
}
.shy {
position:absolute;
width:0px;
height:0px;
border-radius:100%;
opacity:0;
box-shadow: 0px 0px 40px 20px red;
z-index:8;
left:35px;
top:160px;
animation: shy 10s linear .2s infinite;
}
.shy.right {
left:170px;
top:180px;
}
@keyframes eyebroani {
0% {margin-top:auto}
10% {margin-top:-10px}
20% {margin-top:auto}
30% {margin-top:-10px}
40% {margin-top:auto}
100% {margin-top:auto}
}
@keyframes shy {
0% {opacity:0}
10% {opacity:0.2}
90% {opacity:0.2}
100% {opacity:0}
}
@keyframes close-eye {
0% {
height: 40px;
margin-top: auto;
overflow: auto;
}
5% {
height: 2px;
margin-top: 20px;
overflow: hidden;
}
5.1% {
height: 40px;
margin-top:0;
overflow:visible;
}
}
</style>
</body>
</html>