Ask a Doubt
Request a call back

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

CBSE Class 11-science Answered

How to solve this problem?
question image
Asked by dineshchem108 | 01 Mar, 2019, 22:36: PM
answered-by-expert Expert Answer
Acceleration  is defined as rate of change of velocity.
 
Let initial velocity be u and final veleocity be v. Let this change in velocity takes place in t seconds.
 
Hence acceleration a = (v-u)/ t   or   v = u + at ....................................(1)
 
Distance S travelled in t seconds is given by,     S = (average velocity) × time = (1/2) ( v+u ) × t .....................(2)
 
using eqn.(1), eqn.(2) can be written as S = (1/2) ( u+at+u) × t =  u×t + (1/2)a×t2  ............................(3)
 
Let us consider eqn.(2) :  S = (1/2) (v+u) × t 
 
in the above equation, if we substitute for t using eqn.(1), we get,  S = (1/2) (v+u) (v-u)/a   or  v2 = u2 + 2aS
Answered by Thiyagarajan K | 02 Mar, 2019, 08:49: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Physics
AUB=?
Asked by barunmandal12345jmt | 11 Jul, 2024, 16:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
A sheet is fired from a point at distance of 200 m from the foot of a tower 100 m high so that it just passes over it. Find the magnitude and direction of the velocity of shoot
Asked by chandinichauhai | 10 Jul, 2024, 23:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
a car travels first half a distance between two places with speed of 40 km/hr and the rest with the speed of 60 km/hr. Find average speed
Asked by sulthanxx | 08 Jul, 2024, 19:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
The equation of a particle moving in an x-y plane is x=5t and y= 2t^2+t. Time after which it's velocity vector makes an angle 45 degree with the horizontal is
Asked by bhuvana.s3001 | 21 Jun, 2024, 23:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
ll
question image
Asked by tanay4021 | 19 Jun, 2024, 14:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
assertion reason
question image
Asked by contact.asmita03 | 15 Jun, 2024, 11:51: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
My Doubt
question image
Asked by parthjain2448 | 12 Jun, 2024, 15:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
in a circular vernier caliper value of 1 msd is 1' and 30 vernier division coincides with 29 msd. calculate least count of instrument
Asked by kaivalyaam | 12 Jun, 2024, 03:24: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
how option 2
question image
Asked by tkanmani022 | 11 Jun, 2024, 20:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
A steel ball is left through a height of 0.64m on a plate of steel. then height through which is rebounds is 0.36 m. calculated the coefficient of restitution
question image
Asked by duraisamysteephen | 08 Jun, 2024, 12:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Are You a Teacher or a Parent Seeking Customised Tests? Click here
×