Question

third law of motion in solve in equation v=u-at​

Answer 1

Answer:

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$\huge{\bold{\red{⇻}}}$3rd Law of Motion:-

⇝s = ut + ½at²

$\huge{\bold{\red{⇻}}}$ Derivation of 3rd Law of Motion:

Let the distance be “s”.

We know that:-

Distance = Average velocity × Time. Also, Average velocity = (u+v)/2

Therefore,

Distance (s) = (u+v)/2 × t

Also,

from v = u + at

we have:

s = (u+u+at)/2 × t = (2u+at)/2 × t

s = (2ut+at²)/2 = 2ut/2 + at²/2

or s = ut +½ at²✔️

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