Question

The velocity of a body moving at an initial speed of 20 m/s and having an acceleration of
4 m/s after 1 s will be​

Answer 1

$\red\maltese$Given :

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$\longrightarrow\sf\:Initial\: Speed\: of\: Body\: =\: 20 \:m/s$

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$\longrightarrow\sf\:Acceleration\: of \:Body\: = \:4\: m/s$

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$\longrightarrow\sf\: Time \:taken \:=\: 1 S$

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$\blue\maltese$ To Find :

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• $\implies\sf\: Final \:Velocity\: of \:Body$

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$\pink\maltese$ Solution :

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$\large\underline{\red{\sf \pink{\bigstar} Formula \: :-\: v\: = \:u\: +at\::-}}$

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$\large\underline{\green{\sf \blue{\dag} Understanding\: the \: Concept:-}}$

• For solving this question we have to just apply one formula of motion ( v = u + at ), after putting value in formula we can get final answer . So Finally solving further.

• By using Formula !

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• $\longrightarrow\sf\:V\: =\: 20\: + \:4 \:×\: 1$

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• $\longrightarrow\sf\: V \:=\: 20\: +\: 4\:m/s$

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• $\longrightarrow\sf\: V\: =\: 24\: m/s$

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$\red\dag$ Therefore :

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$\implies\sf\: Final \:Velocity\: of \:body\: is\: 24 \:m/s$

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Answer 2

Answer:

$\huge\mathbb\fcolorbox{purple}{lavenderblush}{✰Answer}$

Initial speed of the body = 20 m/s.

Acceleration = 4 m/s.

Time = 2 s.

Using the first equation of motion :

⇒ v = u + at

⇒ v = 20 + 4*2

⇒ v = 20 + 8

⇒ v = 28 m/s

Hence, the velocity of the body after 2 s will be 28 m/s.