Question

A body starts from rest and travels with uniform acceleration on a straight line. If its velocity after making a displacement of 32 meter is 8 m/s then it's acceleration is:- (A) 1 m/s^2 [One meter per second square] (B) 2 m/s^2 [Two meter per second square] (C) 3 m/s^2 [Three meter per second square] (D) 4 m/s^2 [Four meter per second square]​

Answer 1

$\star\small\sf\underline\blue{Given:-}$

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• A body starts from rest and travels with uniform acceleration on a straight line. If its velocity after making a displacement of 32 meter is 8 m/s.

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$\star\small\sf\underline\blue{Find \: Out:-}$

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• The required acceleration = ?

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$\star\small\sf\underline\blue{Solution:-}$

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• The Initial velocity is 0m/s.
• The Final velocity is 8m/s.
• The displacement is 32m

$\footnotesize\bold{\underline{\underline{\sf{\red{By\:the\: third\: equation\:of\: motion:-}}}}}$

${\underline{\boxed{\sf{V^2 = U^2 + 2 \times a \times s }}}}$

$\footnotesize\bold{\underline{\underline{\sf{\red{Putting\: the \:values:-}}}}}$

$\leadsto \sf \: 8^2 - 0^2 = 2 \times acceleration \times 32$

$\leadsto \sf \: 64 = acceleration \times 64$

$\leadsto \sf \: Acceleration = \cancel \dfrac{64}{64}$

$\leadsto \sf \: Acceleration = 1$

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$\star\small\sf\underline\blue{AnswEr:-}$

• The required acceleration is 1 m/s².

Answer 2

Answer:

your right answer is 1

Explanation:

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