Answered: A rock thrown downward with an unknown…

A rock thrown downward with an unknown initial velocity from a height of 1000 feet reaches the ground in 5 seconds. Find the velocity of the rock when it hits the ground.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

A rock thrown downward with an unknown initial velocity from a height of 1000 feet reaches the ground in 5
seconds. Find the velocity of the rock when it hits the ground.
O a.
-280 ft/sec
Ob.
-214.5 ft/sec
O c. -180.25 ft/sec
O d. -145 ft/sec

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