Physics
Grade-10
Easy
Question
Calculate the kinetic energy of a body of mass 2 kg moving with a velocity of 0.1 meters per second.
- 0.01 J
- 0.02 J
- 0.04 J
- None of these
Hint:
Kinetic energy can be calculated by 1/2 mv2
The correct answer is: 0.01 J
Given:
Mass of the body = 2kg
The velocity of the body = 0.1 ms-1
To find:
Kinetic energy=?
Solution:
![K i n e t i c space e n e r g y space equals space 1 half cross times m cross times v squared
K E space equals space 1 half cross times 2 cross times 0.1 space cross times 0.1
K E space equals space 0.01 J](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAN4AAABsCAYAAAAFZQzJAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAA04ZBmKwAACFRJREFUeNrtnXGkFlkUwK/kSRJJkiSStZIsayVJIsmTJLKy1lqRZCUrspL+imQlWctaeZ4kkqz19E+e5HlWrDxZK4+V/WMl8SRJ8vj2Ht/5dHf2zjf33plvvpn3fj+Ompl7Z86cuWfuvWfu944xAOX4yMp5KzOYAqA+blg5bqWDKQDqB8cDwPEAcDwAwPEAcDwAwPEqt4nIeyvTVjZjEsDx6mOJlZNWHmMKwPHq5x0mAByvXnZbedivwFvtGl0+szJuZUVBuToY1nWh/zzGFfgv63SOtymvgEz+nmT27bJyMaBcVWxWJUP1A2gyspZ1Qp0vl0NWbjrbB0x3HV6dHM7oANDmnu6elZVFBS9YOes43f6Acr3tM1bWWhnT4eCclVOeulLmjk40/9axr3sed8hytuC6Roe/l638Y7ph27tWVhXcZz8dqrwfV+cTVn7Xcu49LFf9X+oxOdcPTpnrVj73XPe0ZyTSNs6pxB5z7Sr2v2blhZXnVkb1uLSBK/rcXlv5rmId8jqISUcHcbqPQwxxW3s9kW0B5dztU9pId+scbL02pOVOuZU6VDyo21us/FFw7n7HxOkeawOUc4+owxzoo3uoDlXej7wUvveM8ZfqhPus/l/kWyvzzn1+pY5pMs46a2V14hysSXMyX+MucrqeXS/oy+yo2m6jlWfa0zzUF5bs36DPbm2FOsi0Z8YTQHmUMv+d1bfHvoKbntWG6G77hqRzmcZx2fPmmVCH6fFUDRhy3UuqbwwhOlR5P7P6dvRxPqfXmnXmBKPayLJv+/MLaEjmNvIQp+vZaNIzupGX3M85+9dVrEM20Peblb2xN79ETzSqb41VBeXc7Teecks95V5ZWZPZ99pRPnvuouu+DBhWmgQd6rgfo0Oj1R4d3euvzvSicr2/rCwbgoN0EiXU+e4HNvieXZdH7q9Sh56j9UaG+03B54I8tjsVz+ibO6/cgz7bPXZ4yvkeynSODkXXlU8cUwn3GKJDlffzIEeXT3P099VxG80Vnd9V6SxN6fVCG32eXWP3l3U8+cR2RP8/o20kmqN6IvekF3LKjfXZztt/0DNkKtKh3/lGNZASQ6gOVd7PWJ/J+Y3AOlM6P9ykvd1C+44ZO8wLfUYhz6HMUPOkTjcOqcMmcU0jb+7QasoT2ZRyx/ps5+3fkZl4+rhq5Zs++h3L9BhPI+8xRIcq7yfvXD3HveXZf8NTZ1zLSxTtywXsdKGBjWs5c/DY/WUDPL2Xv0wFPkk1wF0nDOrOJ2Y0KpRXzlcvb/+fOkxaonMzCUzsco5LGP16hH4zGpxYqhFGOffOgvss0qHK+8k7Vy8i+sJ5YPLvHQ0CZD9JnFa7PFkEThdyLOYZFT2HMp80ZC4p0dJfyxhhLmfCvlXnXctyyuXV8+3fpL3ovDba7Jt9iza8TiYymHe+DarbvDbKYwH3WaRDlfczVxAEkV5Mvv3J90cJi+/TgFF2KHlIbXLQQOwzCnkOZXilPgItZmvO8POgRtCaxE7toV/ri0NGH1/wCKHpyIqGH82Hb0sSpZ02/pUO90xixGyAPNSgxQpntDKt+wAaywqd9Ms3u7fqXFtzesGJltzTRsMidoChwI89AWpmh8n/SRcADACJGsp3zZ2YAqAe5BvmL6Z4cT0AVMQmdTr+dB1ATcinD/kJznJMAVAP8qNSWSS+FFMA1MeECfyzBgBQHU3/fR8AAAAAAAAAAAAAAAAAAAAAAAAAAMCCQVLfSgqrGUwBUB+Se0D+Tj6r5AGGAI4HgOMB4HgAgOMB4HgAgOMB4HgAgOMB4HgApZAkidkc3JKtdNx8yP4pvDP+v6n43lO/boer++881p2WeKXpZpN9pPKT7gtlWMvq2qr3wJHEE9mMnrusXPSUYy3kB+pOSzxpunnRexzQfaEMa1ldW/UeOIes3MwY5nhAOfg/g0pLfMR0UzhnuZrg6HU24LbqXQsXrJx1nG5/QLmFxDmV2GN5vBvAtWRI68tDt0ePDboBt1XvRnNbezORbQHlqpqDNelv7/saT4rThaQlTrnWnJURz37Z96KmBtxWvRvLrA4H9gWU8znM+gXY86U4XUxa4thrzfc59r7GBtxWvRuHRCIlojlq5ZnpptfNK/emITp3EiW0Yd1PcLqUtMQx15pPHNoOogG3Ve9Gsd10o3PCGdPNf5ZXbnLAztKUXi/W8VLTEsdc60XOkG3ZEIZsbdW7UUhkadzZHtcgiq/cdbOwSRlqpqYljr2WBCJ8Qa99NQcp2qp345C53QlnW1LsTnmMJeW+XiROFxo4SE1LnHKtw+rgWcZMfWH5turdSO7q/M5ljel+KN+QKbd/ETldyLGUtMRlPl08sHJaHX1Eyz7sM6yvsgG3Ve/GMqfj7Sxb1TjLnHJ5c7MRszipe766Sof7EpSQgJgsvVoR0YCHNa9uq97Qh7rXSwKAqX+9JADkMKj1kgBQwDtMAFAvIeslAaBCYtZLAkAFpKyXBIASpK6XBIBEUtdLAkAiqeslAaAEKeslAaAkTf99HwAAAAAAAAAAAAAAAAAAAAAAAAAAAAyJNuVAL5NTO6ZuTO7tt2a4OeChhbQtB3qZnNoxdUNzb/vsB1BIm3Kgl8mpnVq3E2C/WzQjiKVNOdDL5NROrduJsB9AMG3KgV4mp3Zq3U6g/QCiaFMO9DI5tVPrdgLssp5mBDG0LQd6mZzaqXU7AfYDiKJtOdDL5NROrdspsN8DmhHE0rYc6GVyaqfW7RTYb4xmBLG0LQd6mZzaqXU7BfY7RjOCWNqYA71MTu3QuqGOJ3bZQzOCWNqYA71MTu3QuiZgHiqBleeGpWIAtSHOdkl7TAAYMHu1t5Qo6HnMATH8C20BU4rTGTaoAAAC5HRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtaT5LPC9taT48bWk+aTwvbWk+PG1pPm48L21pPjxtaT5lPC9taT48bWk+dDwvbWk+PG1pPmk8L21pPjxtaT5jPC9taT48bW8+JiN4QTA7PC9tbz48bWk+ZTwvbWk+PG1pPm48L21pPjxtaT5lPC9taT48bWk+cjwvbWk+PG1pPmc8L21pPjxtaT55PC9taT48bW8+JiN4QTA7PC9tbz48bW8+PTwvbW8+PG1vPiYjeEEwOzwvbW8+PG1mcmFjPjxtbj4xPC9tbj48bW4+MjwvbW4+PC9tZnJhYz48bW8+JiN4RDc7PC9tbz48bWk+bTwvbWk+PG1vPiYjeEQ3OzwvbW8+PG1zdXA+PG1pPnY8L21pPjxtbj4yPC9tbj48L21zdXA+PG1zcGFjZSBsaW5lYnJlYWs9Im5ld2xpbmUiLz48bWk+SzwvbWk+PG1pPkU8L21pPjxtbz4mI3hBMDs8L21vPjxtbz49PC9tbz48bW8+JiN4QTA7PC9tbz48bWZyYWM+PG1uPjE8L21uPjxtbj4yPC9tbj48L21mcmFjPjxtbz4mI3hENzs8L21vPjxtbj4yPC9tbj48bW8+JiN4RDc7PC9tbz48bW4+MDwvbW4+PG1vPi48L21vPjxtbj4xPC9tbj48bW8+JiN4QTA7PC9tbz48bW8+JiN4RDc7PC9tbz48bW4+MDwvbW4+PG1vPi48L21vPjxtbj4xPC9tbj48bXNwYWNlIGxpbmVicmVhaz0ibmV3bGluZSIvPjxtaT5LPC9taT48bWk+RTwvbWk+PG1vPiYjeEEwOzwvbW8+PG1vPj08L21vPjxtbz4mI3hBMDs8L21vPjxtbj4wPC9tbj48bW8+LjwvbW8+PG1uPjAxPC9tbj48bWk+SjwvbWk+PC9tYXRoPgoCvWIAAAAASUVORK5CYII=)
Answer:
The kinetic energy of the body is 0.01J
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