Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

<div>The body projected vertically with a speed of 25m/s. Then find the distance travelled by the body in 3rd second of its motion. g=10m/s2</div> <div>1. 5m</div> <div>2. 4m</div> <div>3. 2.5m</div> <div>4. zero</div>
Asked by Mamali Nanda | 16 Jul, 2016, 08:00: AM
Expert Answer
begin mathsize 14px style The space distance space travelled space by space the space body space in space the space tth space second space is
straight S subscript straight t equals straight u plus straight a over 2 open parentheses 2 straight t minus 1 close parentheses
Now comma space the space body space is space projected space vertically. space So comma space straight a equals negative straight g equals negative 10 space straight m divided by straight s squared
therefore straight s subscript 3 equals 25 minus 10 over 2 open parentheses 2 cross times 3 minus 1 close parentheses equals 25 minus 5 cross times 5 equals 25 minus 25 equals 0 space straight m
Hence comma space the space correct space answer space is space option space 4. end style
Answered by Romal Bhansali | 18 Jul, 2016, 12:03: PM
CBSE 11-science - Physics
Asked by sumityadv5665 | 24 Dec, 2022, 02:36: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by adityajaiswal80551 | 18 Dec, 2022, 06:29: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by madhavrao135 | 13 Jul, 2022, 07:33: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by bhagyadevi36 | 31 Oct, 2021, 02:08: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by geetasinghaastha | 16 Aug, 2021, 08:07: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by rahi7102005 | 20 May, 2021, 07:52: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by 0 JAGLAN | 08 Aug, 2020, 10:51: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by Neerajv.au | 26 Jun, 2020, 03:25: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by rajsolankiveer | 11 Jun, 2020, 05:08: PM
ANSWERED BY EXPERT
Get FREE Sample Mock Papers for Final Exams
Download Now
×