Answer:
- 892 lb (right)
- 653 lb (left)
Step-by-step explanation:
The weight is in equilibrium, so the net force on it is zero. If R and L represent the tensions in the Right and Left cables, respectively ...
Rcos(45°) +Lcos(75°) = 800
Rsin(45°) -Lsin(75°) = 0
Solving these equations by Cramer's Rule, we get ...
R = 800sin(75°)/(cos(75°)sin(45°) +cos(45°)sin(75°))
= 800sin(75°)/sin(120°) ≈ 892 . . . pounds
L = 800sin(45°)/sin(120°) ≈ 653 . . . pounds
The tension in the right cable is about 892 pounds; about 653 pounds in the left cable.
_____
This suggests a really simple generic solution. For angle α on the right and β on the left and weight w, the tensions (right, left) are ...
(right, left) = w/sin(α+β)×(sin(β), sin(α))
4x (7x +4). The greatest factor is 4x because it comes out of both.
Answer:
6.5 minutes
Step-by-step explanation:
Divide T (total number of minutes) by M (total number of miles)
Answer: 3
Step-by-step explanation:
Multiply 7 x 5.2
Divide 109.2/36.4
Answer 3
Answer:
3168 feet
Step-by-step explanation:
Do not know how to word explanation.
