A rock is tossed straight up with a speed of 25 m/s. When it returns, it falls into a hole 11 m deep. 1) What is the rock's velocity as it hits the bottom of the hole? Express your answer in meters per second. Enter positive value if the velocity is upward and negative value if the velocity is downward. 2) How long is the rock in the air, from the instant it is released until it hits the bottom of the hole? Express your answer in seconds.

A rock is tossed straight up with a speed of 25 m/s. When it returns, it falls into a hole 11 m deep. 1) What is the rock's velocity as it hits the bottom of the hole? Express your answer in meters per second. Enter positive value if the velocity is upward and negative value if the velocity is downward. 2) How long is the rock in the air, from the instant it is released until it hits the bottom of the hole? Express your answer in seconds.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 2.85CP: A man drops a rock into a well, (a) The man hears the sound of the splash 2.40 s after he releases...

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