Physics for Scientists and Engineers, Vol. 1
6th Edition
ISBN: 9781429201322
Author: Paul A. Tipler, Gene Mosca
Publisher: Macmillan Higher Education
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Chapter 3, Problem 74P
To determine
The initial speed
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3. An artillery unit is conducting a fire mission on an enemy observation post located a
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(25)
(25)
PH2052 D
a. Assume that the shell hits the target and that air resistance is negligible.
Calculate the time it takes the shell to reach the target.
b.
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A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 33.0 m above sea level, directed at an angle e above the horizontal with
an unknown speed vo.
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55.299°
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Incorrect. Tries 9/10 Previous Tries
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Calculate the speed at which the rock is launched.
34.93m/s
You know the net change in height of the rock, along with the horizontal distance it travels. Since you calculated the initial angle already, you can use your equations of position in…
Based on question 4, calculate hmax for
v=10m/s.
hm(10)
hm(v=10);
Based on question 4, find the critical speed for
hmax =0
fzeros(hm,6)
roots ([1/(2*g),g*D^2/2,-H];
fzero(hm,6);
zeros(hm, 6);
Chapter 3 Solutions
Physics for Scientists and Engineers, Vol. 1
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