Question

calculate the kinetic energy of a body of mass 10 kg after falling from rest for 2 second​

Answer 1

Answer:2000 J

Explanation:

See the image for solutions

Answer 2

Answer:

a = g = 10 m/s²

t = 2 sec

v = u + at

v = 10×2

  = 20 m/s

m = 10 kg

KE = 1/2 mv²

KE = 1/2 × 10 × 400

     = 2000 J

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