The hammer of a pile driver has a mass of 3000 kg. It falls through a height of 9 m. The hammer's kinetic energy just before impact is:
A. 27.0 kJ
B. 264.87 kJ
C. 27,000 kJ
D. 243,000 J
E. None of the above
Answer: B
The hammer of a pile driver has a mass of 3000 kg. It falls through a height of 9 m. The hammer's kinetic energy just before impact is:
A. 27.0 kJ
B. 264.87 kJ
C. 27,000 kJ
D. 243,000 J
E. None of the above
Answer: B