Question

explain all the equations of motion with examples
. plz. don't try to get points .
plz help me explain each and every step nicely,..,.
hope I will get answer soon ...
this will satisfy my need

Answer 1

Three equation of motion are :-

1st equation of motion =         v = at + u 

as we know acc. = change in velocity upon time then :

a = final velocity - initial velocity / time

  =  v - u / t

therefore : a = v - u / t

  at = v - u

    v  = at + u ( 1st equation of motion )

 

2nd equation of motion :-   s  =   ut + (1/2)at2

  where :  s = distance or displacement

  u = initial velocity

  t = time

  a = acceleration

  now If we calculate :

average velocity = (u+v)/2

Now, the distance s, traveled in the time t by the body is given by 

distance traveled = average velocity x time

s = [(u+v)/2]t

now from 1st equation of motion ; we have v=u+at, substituting this in the above equation for v, we get

  s  =  [ u + u + at / 2 ] t

  =  [ 2 u + at / 2 ]

  =  [u + 1/2 at ] t

  =  ut  +  1 /2 at2

3rd Equation of motion :-  v 2  = u2 + 2 a s

  We start from the 1st equation of motion : -

  i . e.  =>  v  =  u + at

  =  v2 =   (  u + at )2

  =  v2  =   u2 + a2t2 + 2uat

  =  v2  =  u2 + 2uat  + a2t2

  =  v2   =  u2 + 2a (ut  +  1/2 at2)

  Subsituting  ( ut + 1/2 at2) by  s  we get :

  =  v2   =  u2 + 2 a s
[If it helped u plz mark it as brainliest]

Answer 2

mate why you have left brainly.