physics

posted by .

A 2.00 kg blob of Gak, moving at 4.0 m/s, strikes a motionless figure skater in the back and sticks. The skater, with the Gak on her back, glides off at 0.160 m/s. Calculate the skater’s mass.

  • physics -

    Neglect friction (because of the ice skates)and assume conservation of momentum. That results in the equation

    2.00*4.0 = (M + 2.00)*0.160

    Solve for M, which will be in units of kg

  • Physics -

    mvi + mvi(2) = mvf + mvf(2) all energy is conserved
    2(4) = (m + 2).16 (the masses are now combined)
    8 = .32m
    m = 25 kg



    your welcome

  • physics -

    Ok you guys are retarded and definitely do not know your PEMDAS. The correct answer is 48 kg...

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    An ice skater of mass 55.3 kg stops to tie his shoe and is at rest. A second ice skater of mass 32.7 kg is moving at a velocity of 15.9 m/s when he strikes the first ice skater. After the collision the second ice skater has a velocity …
  2. Physics

    an ice skater with a mass of 80kg pushes off against a second skater with a mass of 32kg. both skaters are initially at rest. a. what is the total momentum of the system after the push off?
  3. Laws of Motion

    Two skaters are in the exact center of a circular frozen pond. Skater 1 pushes skater 2 off with a force of 100 N for 1.4 seconds. If skater 1 has a mass of 30 kg and skater 2 has a mass of 74 kg, a) what is the relative velocity (v1 …
  4. physics

    A 63-kg ice-skater glides with a speed of 10 m/s toward a 14-kg sled at rest on the ice. The ice-skater reaches the sled and holds on to it. The ice-skater and the sled then continue sliding in the same direction in which the ice-skater …
  5. physics

    A 59.1 kg ice skater, moving at 13.3 m/s, crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 6.65 m/s. Suppose the average force a skater experience without breaking a bone is 4656 …
  6. physics

    A 59.1 kg ice skater, moving at 13.3 m/s, crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 6.65 m/s. Suppose the average force a skater experience without breaking a bone is 4656 …
  7. physics

    Skater 1 has a mass of 45 kg and is at rest. Skater 2 has a mass of 50 kg and is moving slowly at a constant velocity of 3.2 m/s [E]. Skater 3 has a mass of 75 kg and is moving quickly at a constant velocity of 9.6 m/s [E]. Which skater …
  8. physics

    Two fi gure skaters are moving east together during a performance. Skater 1 (78 kg) is behind skater 2 (56 kg) when skater 2 pushes on skater 1 with a force of 64 N [W]. Assume that no friction acts on either skater. T / I (a) Determine …
  9. Physics

    A 63-kg ice-skater glides with a speed of 10 m/s toward a 14-kg sled at rest on the ice. The ice-skater reaches the sled and holds on to it. The ice-skater and the sled then continue sliding in the same direction in which the ice-skater …
  10. Physics

    Two figure skaters are coasting in the same direction, with the leading skater moving at 4.7 m/s and the trailing skater moving at 5.7 m/s. When the trailing skater catches up with the leading skater, he picks her up without applying …

More Similar Questions