Two cannonballs are dropped from a second floor physics lab at height h above the ground. Ball B has four times the mass of ball A. When the balls pass the bottom of a first floor window at height above the ground, the relation between their kinetic energies, K_A and K_B, is A) K_A = 4K_B. B) K_A = 2K_B. C) K_A = K_B. D) K_B = 2K_A. E) K_B = 4K_A.

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The Answer of Two cannonballs are dropped from a second floor physics lab at height h above the ground. Ball B has four times the mass of ball A. When the balls pass the bottom of a first floor window at height above the ground, the relation between their kinetic energies, K_A and K_B, is A) K_A = 4K_B. B) K_A = 2K_B. C) K_A = K_B. D) K_B = 2K_A. E) K_B = 4K_A.

Two Cannonballs Are Dropped from a Second Floor Physics Lab