Two balls are thrown from the top of a building. Ball 1 is thrown straight down,
ID: 2100110 • Letter: T
Question
Two balls are thrown from the top of a building. Ball 1 is thrown straight down, while Ball 2 is thrown at the same speed in an upward direction that makes an angle ? with respect to the horizontal. Which one of the following statements is true?Choose one answer.
a. The acceleration of ball 2 decreases as it rises, becomes zero at the top of the trajectory, and then increases as the ball begins to fall toward the ground.
b. The acceleration of ball 1 becomes larger and larger as it falls, because the ball is going faster and faster.
c. Both balls have the same acceleration at all times.
d. Ball 2 has an acceleration in both the horizontal and vertical directions, but ball 1 has an acceleration only in the vertical direction.
Explanation / Answer
c. Both balls have the same acceleration at all times.