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 ways to set this up and I just cant seem to get it, help?

  1. 👍 0
  2. 👎 0
  3. 👁 1,021
  1. I'm on my last try and I don't know how to do it!

    1. 👍 0
    2. 👎 0
  2. The momentum change = 2*M*12 m/s = 24 M m/s
    where m is the puck mass in kg
    That equals the impulse, 4.0 kg m/s
    M = 4.0/24 kg = 1/6 kg

    Why are you using two names and switching them in the same question?

    1. 👍 0
    2. 👎 0

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 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

  3. physics

    A hockey puck struck by a hockey stick is given an initial speed v0 in the positive x-direction. The coefficient of kinetic friction between the ice and the puck is μk. (a) Obtain an expression for the acceleration of the puck.

  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: =

  1. 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.

  2. Physic

    A hockey puck leaves a player's stick with a speed of 8.60 and slides 38.0 before coming to rest. Find the coefficient of friction between the puck and the ice.

  3. 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

  4. physics/math

    If the change in kinetic energy of a hockey puck hit across the ice by a hockey stick is 200 joules, and the average force that the stick exerts on the puck is 200 N, what is the distance that the force is exerted over? a 0.4 b

  1. math

    5 hockey pucks and three hockey sticks costs $23. 5 hockey pucks and 1 hockey stick costs $20. How much does 1 hockey puck cost?

  2. 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?

  3. 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

  4. Physics

    A puck of mass 0.165 kg, initially resting on ice, is hit by a stick to gain a speed of 32.0 m/s and then slides 25.0 m to lose 5.00% of its kinetic energy. (a) What is the work done on the puck by the stick? (b) What is the

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