Question

derive first and second equation of motion with graph​

Answer 1

Answer:

v=u+at

s=it+1/2at^2

Explanation:

1st equation:-

we know that, a=v-u

-----

t

at= v-u. (transposition)

u+at = v

hence proved

2nd equation:-

we know that distance traveled or displacement = average speed or average velocity × time

[symbols = displacement=s, time=t]

average velocity = v+u × t

------

2

s=v+u ×t

-----

2

we can write v as u+at. (1 eq.)

s=u+at+u ×t

-----------

2

s= 2u+at ×t

---------

2

s= 2ut+at^2

-----------

2

s= 2ut + at^2

----- ------

2 2

s= it+1/2at^2

hence proved

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