Respuesta :

Answer:

10 m/s²

Explanation:

Given

  • u = 0 (initial velocity as it is at rest)
  • v = 72 km/h x 5/18 = 20 m/s
  • t = 2s

Solving

  • v = u + at
  • 20 = 0 + 2a
  • 2a = 20
  • a = 10 m/s²

The correct answer is 10 m/s² .