Loss of Kinetic Energy During Elastic Impact MCQ

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• Which of the following cases Kinetic energy is conserved?
  ক

  Perfectly elastic collision

  খ

  Inelastic collision with 0<e<1

  গ

  Perfectly inelastic collision

  ঘ

  Momentum is always conserved
• Which of the following cases momentum is conserved?
  ক

  Perfectly elastic collision

  খ

  Inelastic collision with 0<e<1

  গ

  Perfectly inelastic collision

  ঘ

  Momentum is always conserved
• A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the velocity of 50 Kg mass in m/s after collision when the collision is inelastic with e = 0.6.
  ক

  2.2

  খ

  2.00

  গ

  3.5

  ঘ

  3.1
• A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the velocity of 25 Kg mass in m/s after collision when the collision is inelastic with e = 0.6.
  ক

  2.5

  খ

  2.00

  গ

  3.5

  ঘ

  3.1
• A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the velocity of 25 Kg mass in m/s after collision when the collision is elastic.
  ক

  2.5

  খ

  2.00

  গ

  3.5

  ঘ

  6.75
• Which of the following cases has the greatest loss in Kinetic energy?
  ক

  e=0

  খ

  e=1/2

  গ

  e=1/4

  ঘ

  e=1
• Kinetic energy before collision is always equal to the kinetic energy after collision.
  ক

  True

  খ

  False
• Coefficient of restitution of elastic bodies is ______
  ক

  One

  খ

  More than one

  গ

  Between 0 and one

  ঘ

  Zero
• A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the velocity of 50 Kg mass in m/s after collision when the collision is elastic.
  ক

  2.5

  খ

  2.00

  গ

  7.25

  ঘ

  6.75
• A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the common velocity in m/s after collision when the collision is completely inelastic.
  ক

  2.5

  খ

  9.75

  গ

  7.25

  ঘ

  6.75
• A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the loss of kinetic energy when the collision is inelastic with e = 0.6.
  ক

  18.75 N-m

  খ

  12.00 N-m

  গ

  13.75 N-m

  ঘ

  12.75 N-m
• The coefficient of restitution is 0 for a completely inelastic collision.
  ক

  True

  খ

  False
• A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the loss of kinetic energy when the collision is inelastic.
  ক

  18.75 N-m

  খ

  19.75 N-m

  গ

  17.75 N-m

  ঘ

  16.75 N-m