Three masses are moving along the x-axis. Their masses and ...

[Zoey63294]

Three masses are moving along the x-axis. Their masses and velocities are m1 = m with v1 = v, m2 = 2m with v2 = 2v, and m3 = 3m with v3 = 3v (the minus sign indicating this velocity is in the negative x-direction). The three masses collide and stick together in a completely inelastic collision. What is the resultant velocity of the combined mass?
 a. 0, since their combined momentum is zero.
  b. 2v/3
  c. 14v/3
  d. v

Question 2

Mitch throws a 130-g lump of clay at a 590-g target, which is at rest on a horizontal surface. After impact, the target, including the attached clay, slides 2.8 m before stopping. If the coefficient of friction is  = 0.50, find the speed of the clay before impact.
 a. 6.4 m/s
  b. 33 m/s
  c. 29 m/s
  d. 0.62 m/s
  e. 34 m/s

[Sassygurl126]

Answer to Question 1

b

Answer to Question 2

c

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