A) 20,000 J - 50,000 J
B) 2,000 J - 5,000 J
C) 200 J - 500 J
D) \[2\times {{10}^{5}}J-3\times {{10}^{5}}J\]
Correct Answer: B
Solution :
| [b] Assuming average speed of athlete to be v |
| \[v=\frac{100cm}{10\sec }=10m{{s}^{-1}}\] |
| \[\therefore \] estimated kinetic energy \[K=\frac{1}{2}m{{v}^{2}}\] |
| Let mass of athlete lies between 40 kg and 100 kg |
| \[\therefore \,\,200J<K<5000J\] |
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