At the Same Moment from the Top of a Building

question 56

Multiple Choice

At the same moment from the top of a building 3.0 × 10² m tall, one rock is dropped and one is thrown downward with an initial velocity of . Both of them experience negligible air resistance. How much EARLIER does the thrown rock strike the ground?

• A) 0.95 s
• B) 0.86 s
• C) 0.67 s
• D) They land at exactly the same time.

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