Tap the correct pairS-ut-12at2v-u-atv2-u2-2asFirst equation nbsp-Second equation nbsp-Third equation

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Standard IX

Physics

Assumptions for Equations of Motions

Tap the corre...

Question

Tap the correct pair

S = u t + \frac{1}{2} a t^{2}

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v = u + a t

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v^{2} = u^{2} + 2 a s

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First equation

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Second equation

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Third equation

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The correct equation of motion is :

(a) v=u+aS (b) v=ut+a

Derive following equations for a uniformly accelerated motion :

(i) v=u+at

(ii) $S = u t + \frac{1}{2} a t^{2}$

(iii) $v^{2} = u^{2} + 2 a S$

where the symbols have their usual meanings.

Q. The third equation of motion

(v^{2} - u^{2} = 2 a s)

can be derived using first two equations of motion

(v = u + a t

and

s = u t + \frac{1}{2} a t^{2})

Q. Derive second equation of motion:

s = u t + \frac{1}{2} a t^{2}

A body is moving with an initial velocity of $u$ and having constant acceleration $a$ . The final velocity $v$ can be obtained by using which of the following equation of motion if a body covers a distance $s$ .

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