derive the equations if motion without using graphical method
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Hi friend ✨✨✨
FIRST EQUATION OF MOTION :-
Acceleration =final velocity - initial velocity
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Time taken
a=v-u/t
at=v-u
v=u +at
V-final velocity of the body
u- Initial velocity
a-acceleration
t-time
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SECOND LAW OF MOTION
S=UT +1/2AT^2
Average velocity =Initial velocity +final velocity
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2
Average velocity =u +v /2
Distance travelled =average velocity ×time
s =(u+v)/2 ×t
We have first equation so put here.
s=(u +u+at)×t /2
s =(2u+at)×t /2
s =2ut +at ^2 /2
s =ut +1/2 at^2
×___________×____________×
THIRD EQUATION OF MOTION
V^2=U^2+2AS
The second equation of motion ,I have
s =ut +1/2at^2 ..............(1)
I have first equation too
v=u +at
This can be rearrange and written as
at=v-u
t=v-u/a
Putting this value of t in equation (1)so I get
s=u(v-u )/a +1/2 a (v-u/a )^2
s =uv -u^2 /a + a (v^2 +u^2 -2uv /2a ^2 )
s =uv -u^2/a +v^2 +u^2 -2uv/2a
s =2uv -2 u^2 +v^2 +u^2 -2uv /2a
2as =v^2 -u^2
v^2 =u ^2 +2as
_×_________×___________×
Hope it is helpful ✌✌✌❤✨✨
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