krishma7
contestada

A car is travelling in the velocity of 20 m/ s . After 30 sec it covers a distance of 1200 m. Calculate the acceleration of car and the final velocity of the car ​

Respuesta :

jeremiahkevinm

Answer:

given values are:

  • u=20 m/s
  • t= 30 s
  • s= 1200 m
  • v= ?
  • a=?

s = ut + 1/2 at²

1200 = 20×30 + 1/2 × 30²a

1200= 600 + 1/2 × 900a

600 = 450a

a = 600 / 450

a = 1.33 m/s²

v²= u² +2as

v² = 20² +2 × 1.33 × 1200

v²= 400 + 3192

v = √3592

v = 59.9 ≈ 60 m/s

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