Suppose that you can crush an aluminum can by dropping a rock of mass m on it from a height h. Which of the following scenarios would crush two cans?
A. dropping a rock of mass 2m from height h
B. dropping a rock of mass m from height 2h
C. dropping a rock of mass 1/2m from height 4h
D. all of the above
E. none of the above
D. all of the above
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