contestada

A plane starting from rest accelerates at 3m/s2 for 25s. Calculate the increase in velocity after:
1. 1s
2. 3s
3. 25s

Respuesta :

  • Initial velocity=u=0m/s
  • Acceleration=a=3m/s^2

Time not needed now

Case-1:-

  • Time=1s
  • Final velocity=v

[tex]\\ \rm\hookrightarrow v=u+at[/tex]

[tex]\\ \rm\hookrightarrow v=0+3(1)[/tex]

[tex]\\ \rm\hookrightarrow v=3m/s[/tex]

Case-2:-

  • Time=3s

[tex]\\ \rm\hookrightarrow v=0+3(3)[/tex]

[tex]\\ \rm\hookrightarrow v=9m/s[/tex]

Case-3:-

  • Time=25s

[tex]\\ \rm\hookrightarrow v=0+3(25)[/tex]

[tex]\\ \rm\hookrightarrow v=75m/s[/tex]

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