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The initial speed of a body is 4.24 m/s. What is its speed after 2.91 s if it accelerates uniformly at -1.76 m/s2
Answer in units of m/s.
PLEASE HELP

Respuesta :

  • Initial velocity=u=4.24m/s
  • Time=t=2.91s
  • Acceleration=a=-1.76m/s^2
  • Final velocity=v

Using 1st equation of kinematics

[tex]\\ \sf\longmapsto v=u+at[/tex]

[tex]\\ \sf\longmapsto v=4.24+2.91(-1.76)[/tex]

[tex]\\ \sf\longmapsto v=|4.24-5.12|[/tex]

[tex]\\ \sf\longmapsto v=0.8m/s[/tex]

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