Which of these parameters is directly related to sound frequency?
1 answer:
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Answer:
a) The weight of the motor is 1120 N
b) The distance of the center of gravity is 1.71 m
c) The weight of the motor is 920 N
d) The distance of the center of gravity is 1.79 m
Explanation:
a) The expression of the forces acting in the vertical direction is:
wmotor = F1 + F2
F1 = 410 N
F2 = 710 N
wmotor = 410 + 710 = 1120 N
b) The momentum of equilibrium about the center of the gravity is:
F1 * x = F2 * (l - x)
Clearing x:
c) The expression for the forces acting in the vertical direction is:
wboard + wmotor = F1 + F2
wmotor = F1 + F2 - wboard
wmotor = 410 + 710 - 200
wmotor = 920 N
d) The same that b)