Two Balls of Equal Size Are Dropped from the Same

question 50

Multiple Choice

Two balls of equal size are dropped from the same height from the roof of a building. One ball has twice the mass of the other. When the balls reach the ground, how do the kinetic energies of the two balls compare?

• A)The lighter one has one fourth as much kinetic energy as the other does.
• B)The lighter one has one half as much kinetic energy as the other does.
• C)The lighter one has the same kinetic energy as the other does.
• D)The lighter one has twice as much kinetic energy as the other does.
• E)The lighter one has four times as much kinetic energy as the other does.

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