Derivative as velocity and acceleration. A ball is thrown vertically from a point 30 feet above the ground. a) At what velocity must it be thrown for it to strike the ground in 2 seconds? Is the ball initially thrown vertically upwards or downward? b) What is its velocity when it strikes the ground? c) Where is the ball one second after it was thron initially? Is it moving upwards or already on its way down? (Hint: take the time and displacement at the maximum point of its flight by setting v=0)

Derivative as velocity and acceleration. A ball is thrown vertically from a point 30 feet above the ground. a) At what velocity must it be thrown for it to strike the ground in 2 seconds? Is the ball initially thrown vertically upwards or downward? b) What is its velocity when it strikes the ground? c) Where is the ball one second after it was thron initially? Is it moving upwards or already on its way down? (Hint: take the time and displacement at the maximum point of its flight by setting v=0)

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 41P: Assume an intercontinental ballistic goes from rest to a suborbital speed of 6.50 km/s 60.0 s (the...

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