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chapter2.6r
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1995-04-09
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121
à 2.6ïReview
äïPlease solve the following triangle applications.
â
êêèNot available in the Review Section.
éS
êêèNot available in the Review Section.
1êêïFind the area of triangle ABC if angle C is
êêê 83.7°, side "a" is 14.5 inches, and side b is
êêê 23.7 inches.
#êêêë A)ï236.3 inìêèB)ï192.8 inì
@fig2102.bmp,25,118
#êêêë C)ï170.79 inìêïD)ïå of ç
ü
êêèNot available in the Review Section.
Ç C
2êêïFind the area of triangle ABC if angle B is
êêê 107.8°, side "a" is .361 cm, and side c is
êêê .89 cm.
#êêêë A)ï2.4 cmìêëB)ï.153 cmì
@fig2102.bmp,25,118
#êêêë C)ï1.96 cmìêè D)ïå of ç
ü
êêèNot available in the Review Section.
Ç B
3êêïFind the magnitude of the resultant vector re-
#êêê presenting the sum of F¬ and F½.ïF¬ has magnitude
#êêê 34 lbs and direction 43°.ïF½ has magnitude 16 lbs
êêê and a direction of 95° from vertical.
êêêë A)ï46.26 lbsêèB)ï39.68 lbs
@fig2601.bmp,25,118
êêêë C)ï53.5 lbsêè D)ïå of ç
ü
êêèNot available in the Review Section.
Ç A
4êêïFind the direction of the resultant vector re-
#êêê presenting the sum of F¬ and F½.ïF¬ has magnitude
#êêê 34 lbs and direction 43°.ïF½ has magnitude 16 lbs
êêê and a direction of 95° from vertical.
êêêë A)ï33.68°êë B)ï42.1°
@fig2601.bmp,25,118
êêêë C)ï28.11°êë D)ïå of ç
ü
êêèNot available in the Review Section.
Ç C
5êêïFind the distance across a stream from point
êêê A to point B with the given information.
êêêë A)ï176.3 ftêè B)ï151.03 ft
@fig2602.bmp,25,118
êêêë C)ï183.5 ftêè D)ïå of ç
ü
êêèNot available in the Review Section.
Ç B
6êêïFind the length of the pole if the angles of
êêê elevation at point A are 25° and 40°.ïDistance
êêê AD is 100 feet.
êêêë A)ï33.79 ftêè B)ï28.6 ft
@fig2603.bmp,25,118
êêêë C)ï40.1 ftêëD)ïå of ç
ü
êêèNot available in the Review Section.
Ç A
7êêïA plane has a heading of 145° and a speed of
êêê 315 mph.ïA 35 mph wind is blowing from 278°.
êêê Find the air speed relative to the ground.
êêêë A)ï339.8 mphêèB)ï367.4 mph
@fig2604.bmp,25,118
êêêë C)ï380 mphêëD)ïå of ç
ü
êêèNot available in the Review Section.
Ç A
8êêïA plane has a heading of 145° and a speed of
êêê 315 mph.ïA 35 mph wind is blowing from 278°.
êêê Find the heading relative to the ground.
êêêë A)ï125.6°êë B)ï137.8°
@fig2604.bmp,25,118
êêêë C)ï140.68°êëD)ïå of ç
ü
êêèNot available in the Review Section.
Ç C
9êêïFind the distance from the earth to the planet
êêê if the distance from the earth to the sun is
êêê 93,000,000 miles.
êêêë A)ï69,324,682 mië B)ï80,863,028 mi
@fig2605.bmp,25,118
êêêë C)ï91,436,210 mië D)ïå of ç
ü
êêèNot available in the Review Section.
Ç B