Question

The velocity of a body moving at an initial speed of 80.5m/s and having an acceleration of 20m/s after 2 s will be​

Answer 1

$\bigstar$Given :

$\:\:\:\:\:\:\:\:\:\:\:$

$\mapsto\sf\:Initial\: Speed\: of\: Body\: =\: 80.5\:m/s$

$\:\:\:\:\:\:\:\:\:\:\:$

$\mapsto\sf\:Acceleration\: of \:Body\: = \:20\: m/s$

$\:\:\:\:\:\:\:\:\:\:\:$

$\mapsto\sf\:Time \:taken \:=\: 2S$

$\:\:\:\:\:\:\:\:\:\:\:$

$\bigstar$ To Find :

$\:\:\:\:\:\:\:\:\:\:\:$

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

$\:\:\:\:\:\:\:\:\:\:\:$

$\bigstar$ Solution :

$\:\:\:\:\:\:\:\:\:\:\:$

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

$\:\:\:\:\:\:\:\:\:\:\:$

$\large\underline{\purple{\sf \pink{\dag} Understanding\: the \: Concept:-}}$

• 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.

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$\:\:\:\:\:\:\:\:\:\:\:$

• By using Formula !

$\:\:\:\:\:\:\:\:\:\:\:$

• $:\implies\sf\blue{V\: =\: U + \:at}$

$\:\:\:\:\:\:\:\:\:\:\:$

• $:\implies\sf\green{V\: =\: 80.5\: + \:20\:×\: 2}$

$\:\:\:\:\:\:\:\:\:\:\:$

• $:\implies\sf\orange{ V \:=\: 80.5\: +\: 40\:m/s}$

$\:\:\:\:\:\:\:\:\:\:\:$

• $:\implies\sf\pink{V\: =\: 120.5\: m/s}$

$\:\:\:\:\:\:\:\:\:\:\:$

$\red\dag$ Therefore :

$\:\:\:\:\:\:\:\:\:\:\:$

$\mapsto\sf\red{Final\:Velocity\:of \:body\: is\:120.5\:m/s}$

$\:\:\:\:\:\:\:\:\:\:\:$

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Answer 2

According to Question :

• V = U + at

• V = 80.5 + 20 × 2 m/s

• V = 80.5 + 40 m/s

• V = 120.5 m/s

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