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Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of 14 m/s to the heavier block in the direction of the lighter block. The velocity of the centre of mass is
  • a)
    30 m/s
  • b)
    20 m/s
  • c)
    10 m/s
  • d)
    5 m/s
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Two blocks of masses 10 kg and 4 kg are connected by a spring of negli...
Just after collision
Note : Spring force is an internal force, it cannot change the linear momentum of the (two mass + spring) system.
Therefore vc remains the same.
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Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of 14 m/s to the heavier block in the direction of the lighter block. The velocity of the centre of mass isa)30 m/sb)20 m/sc)10 m/sd)5 m/sCorrect answer is option 'C'. Can you explain this answer?
Question Description
Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of 14 m/s to the heavier block in the direction of the lighter block. The velocity of the centre of mass isa)30 m/sb)20 m/sc)10 m/sd)5 m/sCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of 14 m/s to the heavier block in the direction of the lighter block. The velocity of the centre of mass isa)30 m/sb)20 m/sc)10 m/sd)5 m/sCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of 14 m/s to the heavier block in the direction of the lighter block. The velocity of the centre of mass isa)30 m/sb)20 m/sc)10 m/sd)5 m/sCorrect answer is option 'C'. Can you explain this answer?.
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