A0.28-kg rock is thrown vertically upward from the top of a cliff that is 31 m high. When it hits the ground at the base of the cliff, the rock has a speed of 30 m/s. You may want to review (Pages 234 - 241). Part A Assuming that air resistance can be ignored, find the initial speed of the rock. Express your answer using two significant figures. m/s Submit RequontAnewer Part B Find the greatest height of the rock as measured from the base of the clif. Express your answer using two significant figures.

A0.28-kg rock is thrown vertically upward from the top of a cliff that is 31 m high. When it hits the ground at the base of the cliff, the rock has a speed of 30 m/s. You may want to review (Pages 234 - 241). Part A Assuming that air resistance can be ignored, find the initial speed of the rock. Express your answer using two significant figures. m/s Submit RequontAnewer Part B Find the greatest height of the rock as measured from the base of the clif. Express your answer using two significant figures.

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

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

A0.28-kg rock is thrown vertically upward from the top of a cliff that is 31
m high. When it hits the ground at the base of the cliff, the rock has a
speed of 30 m/s . You may want to review (Pages 234 -241) -
Part A
Assuming that air resistance can be ignored, find the initial speed of the rock.
Express your answer using two significant figures.
?
m/s
Submit
Requeet Answer
Part B
Find the greatest height of the rock as measured from the base of the cliff.
Express your answer using two significant figures.
Hmar =
Submit
Requeet Anewer

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