Explain why the curve in Example 5 lies on the cylinder x 2 + y 2 = 1 ,as shown in Figure 14.7 Example 5 Limits and continuity consider the function r ( t ) = cos π t i + sin π t j + e − t k for t ≥ 0 . Figure 14.7
Explain why the curve in Example 5 lies on the cylinder x 2 + y 2 = 1 ,as shown in Figure 14.7 Example 5 Limits and continuity consider the function r ( t ) = cos π t i + sin π t j + e − t k for t ≥ 0 . Figure 14.7
Two cables tied together at C are loaded as shown. Given: Q = 130 lb.
8
30°
C
B
Q
3
4
Draw the free-body diagram needed to determine the range of values of P for which both cables remain taut.
Cable AB is 103 ft long and the tension in the cable is 3900 lb.
56 ft
A
50°
20°
B
x
C
Identify the angles 0.0, and 8, that define the direction of force.
1
By
N
2
Match each of the options above to the items below.
142.1°
57.1°
73.3°
3
8.
In the given figure, P = 51 lb .
65°
C
25°
35°
75 lb
P
Determine the corresponding magnitude of the resultant.
The corresponding magnitude of the resultant is|
lb.
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