Physics

posted by .

Balance of vertical forces problem. Three balanced forces pull on a ring that is centered over a force table. Two forces F1 and F2 are due to weights hanging from pulleys. A frictionless pulley changes the direction of a force without altering its magnitude. The third force F3 is applied by a string that passes over a pulley and pulls on the force transducer.


EXAMPLE:
>From the balance of vertical forces, derive the expected value of theta2 in terms of m1, m2, and theta1.
[Answer: theta2=sin^(-1)[m1sin1/m2).]

Which equation is NOT used in the derivation?

A. F=ma
B. F=mg
C. Fg=Fsin(theta)
D. Fg=Fcos(theta)

  • Physics -

    The answer is D. Fg=Fcos(theta)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. AP Physics

    While two forces act on it, a particle is to move at the constant velocity v = (3 m/s) i - (4 m/s) j. One of the forces is F1 = (2 N) i + (- 6 N) j. What is the other force?
  2. physics

    Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 26.7 N, the weight of each magnet is 6.55 N, and …
  3. Physics

    Consider two tennis balls on a flat table. The two balls touch each other and are at rest. Which of the following equations is Newton's law in the vertical direction for the tennis ball closer to the observer?
  4. PHYSICS Gr.11

    Objects which are at rest or moving at constant velocity, may have forces acting on them. However the forces are said to be balanced. QUESTION: Which special force is zero, when the forces are balanced?
  5. Physics

    Hello I have an assignment to do about the force table. I'm not sure about my answers, hope someone could check it for me if I answered correctly. 1.What kind of forces do you use on the force table?
  6. Physics - Multiple choice

    An object is moving in a circle at a constant speed. From this you can be certain that a) there are at least two forces acting on the object, which balance each other. b) there are at least two forces acting on the object, which do …
  7. Physics

    Two horizontal forces F1 and F2 act on a 1.7 kg disk that slides over frictionless ice, on which an xy coordinate system is laid out. Force F1 is in the negative direction of the x axis and has a magnitude of 3.0 N. Force F2 has a …
  8. physics

    Three balanced forces pull on a ring that is centered over a force table. Two forces F1 and F2 are due to weights hanging from pulleys. A frictionless pulley changes the direction of a force without altering its magnitude. The third …
  9. Physics 1100

    In a tug of war, two teams pull on opposite ends of a rope, attempting to pull the other team across a dividing line. Team A accelerates toward team B at the rate of 0.106 m/s2. Find all the horizontal forces acting on each team if …
  10. Physics

    Two forces are applied to a block of mass MM=12.0 kg that sits on a horizontal, frictionless table. One force F⃗ 1F→1 has a magnitude of 10.0 N and is directed at an angle θ1 equal to 37.0° from the xx direction as labeled in …

More Similar Questions