CBSE Class 11-science Answered
By seeing a person on the railway track 200m away the engine driver suddenly aplies the break.The speed of the train is reduced from 90km/h to 36km/h in 5second.Calculate the stopping distance?wil the person escapes?
Asked by Aarsha Vijayan | 05 Jan, 2012, 07:47: AM
Expert Answer
here final vel=v=36km/h=10 m/s
initial vel=u=90km/h=25 m/s
2as=v2-u2
find a from v=u-at a=3 m/s2
put this value in prev equation: s=87.5 m
so the person will be able to escape. as 200m<87.5m
Answered by | 05 Jan, 2012, 09:45: AM
Concept Videos
-
Displacement and Average Velocity
This video explains the calculation of displacement and average velocity of... -
Graphical Representation - 1
-
Acceleration - Part 1
This video explains the graphical representation of distance with a body an... -
Kinematics of Linear Motion - 1
This video explains the determination of the kinematic equation of linear m... -
Average Speed and Average Acceleration
This video explains the calculation of average speed, average acceleration ...
CBSE 11-science - Physics
Asked by prashantgaikwadfox000 | 25 Sep, 2022, 05:38: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by ukalyadab | 18 Jul, 2022, 11:52: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by madhavrao135 | 13 Jul, 2022, 07:33: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by piyushhoney2006 | 20 Jun, 2022, 04:12: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by varmaakshay2020 | 13 Jun, 2022, 11:43: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by sush75 | 15 Mar, 2022, 04:02: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by solankihemant2007 | 05 Mar, 2022, 05:19: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by chinttubabu9692 | 27 Jan, 2022, 06:37: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by anyone.viv7807191905 | 21 Dec, 2021, 11:40: PM
ANSWERED BY EXPERT