A particle starts from rest with an acceleration 2m * s ^ – 2 . If the force producing acceleration is applied for 10 s then deter

2 thoughts on “A particle starts from rest with an acceleration 2m * s ^ – 2 . If the force producing acceleration is applied for 10 s then deter”

1. [tex]\large\underline\bold\red{Given:-}[/tex]

   • Initial velocity , u = 0m/s

   • Acceleration , a = 2m/s²

   • Time taken , t = 20 s

   [tex]\large\underline\bold\red{To\:Find:-}[/tex]

   • Final velocity , ( v )

   [tex]\large\underline\bold\red{Solution:-}[/tex]

   ⠀⠀⠀⠀⠀⠀⠀⠀According to the Question

   It is given that the particles start from rest & accelerate at 2m/s² . We have to calculate the final velocity of particles after 20s .

   Using 1st equation of motion :–

   ㅤㅤㅤㅤㅤㅤㅤv = u + at

   where,

   • v denote final velocity

   • u denote initial velocity

   • a denote acceleration

   • t denote time taken

   Substitute the value we get

   [tex]:\implies[/tex] v = 0 + 2×20

   [tex]:\implies[/tex] v = 0 + 40

   [tex]:\implies[/tex] v = 40 m/s

   Hence, the final velocity of the particles is 40m/s

   So, the required option is (a) 40m/s .

   [tex]\rule{300px}{.4ex}[/tex]

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2. [tex]:\implies[/tex] v = 0 + 2×20

   [tex]:\implies[/tex] v = 0 + 40

   [tex]:\implies[/tex] v = 40 m/s

   (a) 40m/s .

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