4. A 76.0- kg boulder is rolling horizontally at the top of a vertical cliff that is 20 m above the surface of a lake, as shown in the figure. The top of the vertical face of a dam is located 100 m from the foot of the Chff 100 m Lake cliff, with the top of the dam level with the surface of the water in the lake. A level plain is 25 m below the top of the dam. Dam 25 m Main What must be the minimum speed of the rock just as it leaves the cliff so it will travel to a. the plain without striking the dam? How far from the foot of the dam does the rock hit the plain? b. nt acceleration

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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A 76.0- kg boulder is rolling horizontally at the top
of a vertical cliff that is 20 m above the surface of a
4.
lake, as shown in the figure. The top of the vertical
100 m
face of a dam is located 100 m from the foot of the
Lake
cliff, with the top of the dam level with the surface
of the water in the lake. A level plain is 25 m below
the top of the dam.
Dam
25 m
Plain
a.
What must be the minimum speed of the rock just as it leaves the cliff so it will travel to
the plain without striking the dam?
b. How far from the foot of the dam does the rock hit the plain?
What acceleration
Transcribed Image Text:A 76.0- kg boulder is rolling horizontally at the top of a vertical cliff that is 20 m above the surface of a 4. lake, as shown in the figure. The top of the vertical 100 m face of a dam is located 100 m from the foot of the Lake cliff, with the top of the dam level with the surface of the water in the lake. A level plain is 25 m below the top of the dam. Dam 25 m Plain a. What must be the minimum speed of the rock just as it leaves the cliff so it will travel to the plain without striking the dam? b. How far from the foot of the dam does the rock hit the plain? What acceleration
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