18. Prove these statements: (a) (5 marks) As long as you can neglect the effects of the air, if you throw anything vertically upward, it will have the same speed when it returns to the release point as when it was released. (b) (5 marks) The time of flight will be twice the time it takes to get to its highest point.

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 2.13OQ: A student at the top of a building of height h throws one ball upward with a speed of i and then...
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18.P
Prove these statements:
(a) (5 marks) As long as you can neglect the effects of the air, if you throw anything vertically upward,
it will have the same speed when it returns to the release point as when it was released.
(b) (5 marks) The time of flight will be twice the time it takes to get to its highest point.
Transcribed Image Text:18.P Prove these statements: (a) (5 marks) As long as you can neglect the effects of the air, if you throw anything vertically upward, it will have the same speed when it returns to the release point as when it was released. (b) (5 marks) The time of flight will be twice the time it takes to get to its highest point.
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