Two planes leave the same airport. The first plane leaves at 1 : 00 P .M . and averages 480 mph at a bearing of S 62 ° E . The second plane leaves at 1 : 15 P .M and averages 410 mph at a bearing of N 12 ° W . a. How far apart are the planes at 2 : 45 P .M . ? b. What is the bearing from the first plane to the second plane at that time? Round to the nearest degree.
Two planes leave the same airport. The first plane leaves at 1 : 00 P .M . and averages 480 mph at a bearing of S 62 ° E . The second plane leaves at 1 : 15 P .M and averages 410 mph at a bearing of N 12 ° W . a. How far apart are the planes at 2 : 45 P .M . ? b. What is the bearing from the first plane to the second plane at that time? Round to the nearest degree.
Solution Summary: The author calculates the distance between the two planes at 2:45PM for the given condition.
Two planes leave the same airport. The first plane leaves at
1
:
00
P
.M
. and averages
480
mph
at a bearing of
S
62
°
E
. The second plane leaves at
1
:
15
P
.M
and averages
410
mph
at a bearing of
N
12
°
W
.
a. How far apart are the planes at
2
:
45
P
.M
.
?
b. What is the bearing from the first plane to the second plane at that time? Round to the nearest degree.
The bracket BCD is hinged at C and attached to a control cable at B. Let F₁ = 275 N and F2 = 275 N.
F1
B
a=0.18 m
C
A
0.4 m
-0.4 m-
0.24 m
Determine the reaction at C.
The reaction at C
N Z
F2
D
The correct answer is C,i know that we need to use stokes theorem and parametrize the equations then write the equation F with respect to the curve but i cant seem to find a way to do it, the integral should be from 0 to 2pi but i might be wrongcould you show me the steps to get to 18pi
A 10-ft boom is acted upon by the 810-lb force as shown in the figure.
D
6 ft
6 ft
E
B
7 ft
C
6 ft
4 ft
W
Determine the tension in each cable and the reaction at the ball-and-socket joint at A.
The tension in cable BD is
lb.
The tension in cable BE is
lb.
The reaction at A is (
lb) i +
Ib) j. (Include a minus sign if necessary.)
University Calculus: Early Transcendentals (4th Edition)
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