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What is the kinetic energy of a 38g soccer ball that is traveling at a speed of 80. m/s? Convert
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43 votes
43 votes
What is the kinetic energy of a 38g soccer ball that is traveling at a speed of 80. m/s? Convert

User Farini
by
3.1k points

2 Answers

22 votes
22 votes

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
User Gyoder
by
2.6k points
13 votes
13 votes

Answer:

  • 1.52 J

Step-by-step 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
User Alexei Burmistrov
by
2.8k points
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