Question

How fast a body of mass 100 kg run so that it's kinetic energy is 1250 J​

Answer 1

Answer:

= 1250-100

= 1160

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Answer 2

given: mass= 100kg

ke = 1250j

Ke = 1/2 ×mv^2

1250 =1/2×100×v^2

2×1250=100v^2

2500 =100×v^2

2500/100 = v^2

25 = v^2

√25 = v

5=v