Question

The velocity of a body moving at an initial speed of 80 m/s and having an acceleration of 100m/s after 2 s will be​

Answer 1

$\red\dag$Given :

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

$\dashrightarrow\sf\:Initial\: Speed\: of\: Body\: =\: 80 \:m/s$

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

$\dashrightarrow\sf\:Acceleration\: of \:Body\: = \:100\: m/s$

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

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

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

$\blue\dag$ To Find :

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

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

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

$\pink\dag$ Solution :

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

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

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

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

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.

• By using Formula !

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

• $\implies\sf\:V\: =\: 80\: + \:100\:×\: 2$

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

• $\implies\sf\: V \:=\: 80\: +\: 200\:m/s$

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

• $\implies\sf\: V\: =\: 280\: m/s$

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

$\red\bigstar$ Therefore :

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

$\leadsto\sf\:Final\:Velocity\:of \:body\: is\:280\:m/s$

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

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Answer 2

$\huge\sf \pmb{\orange {\underline\pink{\underline{\: \: Ꭺ ꪀ \mathfrak ꕶ᭙ꫀя \: \: }}}}$

Given:

• Initial speed of a body = 80m/s
• Final velocity speed of a body=100m/s
• Time taken by the body = 2sec

To find:

Final Velocity of the body

Equation used (first equation of motion)

$\sf{ v = u + at }$

Now putting values in the equation, accordingly

$\sf v = 80 + 100 \times 2$

$\sf v = 80 + 200m/s$

$\sf v = 280m/s$

━━━━━━━━━━━━━━━━━━━━

Therefore, Final velocity of body is 280m/s