Respuesta :

Answer:

  • 1.52 J

Explanation:

Kinetic energy formula

  • K.E. = 1/2mv²

Given

  • m = 38 g = 0.038 kg [kg is standard unit]
  • v = 80 m/s

Solving

  • K.E. = 1/2 x 0.038 x 80
  • K.E. = 40 x 0.038
  • K.E. = 1.52 J
MisterBrainly

m=0.038kg

v=80m/s

Kinetic energy

  • 1/2mv²
  • 1/2(0.038)(80)²
  • 6400(0.038)/2
  • 3200(0.038)
  • 121.6J