Encuentra en forma gráfica el peso de un objeto que se encuentra suspendido del techo por 2 cuerdas, las cuales ejercen una fuer
za de 320N y 400N y forman un angulo de 80 grados entre si
1 answer:
Answer:
709.06 N
Explanation:
To do this, you need to do the drawing of this exercise. In the picture below, you have the draw, and the procedure to do this exercise. You need to apply 2nd Newton's law which is:
F = m*a
However, in this case, we only have tension and the weight of the object (As you can see in the picture), and we have no movement, the object it's supposed to be in rest, so, second law becomes this:
F = 0
In this case, we have rod and weight so the forces involving here are those, so second law is like this:
T1y + T2y - W = 0
To get the T1y and T2y, we have the angle so:
T1y = 320 sin80° = 315.14 N
T2y = 400 sin80° = 393.92 N
With these values, replace them and we get:
315.14 + 392.92 - W = 0
709.06 - W = 0
W = 709.06 N
You might be interested in
Answer:
Explanation:
Average acceleration is found by dividing the change in acceleration by the time.
The shuttle bus has an acceleration of -2.4 meters per square second. It slows from 9.0 meters per second to rest, or 0 meters per second. Therefore:
Substitute the values into the formula.
Solve the numerator.
We want to solve for t, the time. We have to isolate the variable. Let's cross multiply.
t is being multiplied by -2.4. The inverse of multiplication is division, so divide both sides by -2.4
It takes <u>3.75 seconds.</u>
Answer:
Making the crossing gate balanced makes the mechanical drive simpler and less expensive to operate.
Explanation:
See the attachment for a picture of what we're talking about.
The gate must be rotated up and down. That rotation is easier if the mass being rotated is balanced about the center of rotation. Less torque (and work) is required to create the desired motion.
