Physics(Please help)

Three forces act on a hockey puck as it slides across the ice, and it is in equilibrium. The force F is applied at the center and has a magnitude of 25 N. The force F1 is applied at the top edge, and F2 is applied half way between the center and the bottom edge. Find the magnitude of F1 and F2.

I do not understand what to do since there is only one value given.

  1. 👍
  2. 👎
  3. 👁
  1. Conditions of equilibrium are
    1/ the sum of forces in a plane is zero
    2/ the sum of the torques around the axis of the plane is zero.
    Therefore,
    F =F1+F2 ..............(1)
    F1•R = F2•(R/2) .......(2)
    From (2) F2=2F1.
    Plug it in (1) and obtain
    F =F1 + 2•F1 =3•F1.
    F1 =21/3 = 7 N
    F2 = 2F1 =14 N.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics-friction problem

    A 0.170 kg hockey puck is initially moving at 21.2 m/s [W] along the ice. The coefficient of kinetic friction for the puck and the ice is 0.005. (a) What is the speed of the puck after traveling 58.5 m? my solution: Fnet=Fk

  2. Physics

    A hockey puck slides across the ice at a constant speed. Which of the following is true? 1. The puck is moving and thus not in equilibrium. 2. The puck can be considered neither at rest nor in equilibrium. 3. It is in equilibrium.

  3. College Physics

    A hockey puck B rests on frictionless, level ice and is struck by a second puck A, which was originally traveling at 40.0 m/s and which is deflected 30 degrees from its original direction. Puck B acquires a velocity at a -45

  4. physics

    A hockey puck slides across the ice at a con- stant speed. Which of the following is true? 1. The puck is moving and thus not in equi- librium. 2. The puck can be considered neither at rest nor in equilibrium. 3. It is in

  1. physics

    EXERCISE 4.9 (a) Suppose a hockey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What angle does the ramp make with respect to the horizontal? (b) If the ramp has a length of 6.00 m, how long does it take

  2. Physics

    a person pushes on a hockey puck with their stick at an angle so the vertical force is 22N down and the horizontal force is 45N forward. Assume the ice is frictionless. What is the actual force the hockey player transmits to the

  3. Physics

    a hockey player accelerates a puck (m=.167 kg) from rest to a velocity of 50 m/s in 0.0121 sec. Determine the acceleration of the p7uck and the force applied by the hockey stick to the puck. Neglect resistance forces.

  4. physics

    a hockey puck is given the initial speed of 10 m/s. If the coefficient of kinetic friction between the ice and puck is 0.10, how far will the puck slide before stopping?

  1. physic

    A hockey player strikes a puck that is initially at rest. The force exerted by the stick on the puck is 950 N, and the stick is in contact with the puck for 4.4 ms (0.0044 s). (a) Find the impulse imparted by the stick to the

  2. Physics

    A hockey puck of mass 0.16 kg, sliding on a nearly frictionless surface of ice with a velocity of 2.0 m/s (E), strikes a second puck at rest with a mass of 0.17 kg. the first puck has a velocity of 1.5 (N 31 E) after the

  3. physics

    An ice hockey puck slides along the ice at 12 m/s. A hockey stick delivers an impulse of 4.0 kg*m/s causing the puck to move off in the opposite direction with the same speed. What is the mass of the puck? I tried all sorts of

  4. physics

    A hockey puck on a frozen pond is given an initial speed of 20.0 m/s. If the puck always remains on the ice and slides 115 m before coming to rest, determine the coefficient of kinetic friction between the puck and ice. (Answer: =

You can view more similar questions or ask a new question.