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Two blocks A (5kg) and B(2kg) attached to the ends of a spring constant 1120 N/m are placed on a smooth horizontal plane with the spring undeformed. Simultaneously velocities of 3m/s and 10m/s along the line of the spring in the same direction are imparted to A and B then
                                  
  • a)
    When the extension of the spring is maximum the velocities of A and B are zero.
  • b)
    The maximum extension of the spring is 25 cm
  • c)
    Maximum extension and maximum compression occur alternately.
  • d)
    The maximum compression occur for the first time after  sec.
Correct answer is option 'B,C'. Can you explain this answer?
Verified Answer
Two blocks A (5kg) and B(2kg) attached to the ends of a spring constan...
Vcm = m1v1 + m2v2/m1 + m2 = 5m/s
So, Vrela = -2m/s and Vrelb = 5m/s
Now, Va = 5m/s and Vb = 5m/s
Also, ½ K x2max = ½ μ V2rel 
So, xmax = ¼ m = 25 cm
Now, since the time periods of both the blocks are same so they will be at max compression and elongation alternatively
 
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Two blocks A (5kg) and B(2kg) attached to the ends of a spring constant 1120 N/m are placed on a smooth horizontal plane with the spring undeformed. Simultaneously velocities of 3m/s and 10m/s along the line of the spring in the same direction are imparted to A and B then a)When the extension of the spring is maximum the velocities of A and B are zero.b)The maximum extension of the spring is 25 cmc)Maximum extension and maximum compression occur alternately.d)The maximum compression occur for the first time aftersec.Correct answer is option 'B,C'. Can you explain this answer?
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Two blocks A (5kg) and B(2kg) attached to the ends of a spring constant 1120 N/m are placed on a smooth horizontal plane with the spring undeformed. Simultaneously velocities of 3m/s and 10m/s along the line of the spring in the same direction are imparted to A and B then a)When the extension of the spring is maximum the velocities of A and B are zero.b)The maximum extension of the spring is 25 cmc)Maximum extension and maximum compression occur alternately.d)The maximum compression occur for the first time aftersec.Correct answer is option 'B,C'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Two blocks A (5kg) and B(2kg) attached to the ends of a spring constant 1120 N/m are placed on a smooth horizontal plane with the spring undeformed. Simultaneously velocities of 3m/s and 10m/s along the line of the spring in the same direction are imparted to A and B then a)When the extension of the spring is maximum the velocities of A and B are zero.b)The maximum extension of the spring is 25 cmc)Maximum extension and maximum compression occur alternately.d)The maximum compression occur for the first time aftersec.Correct answer is option 'B,C'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two blocks A (5kg) and B(2kg) attached to the ends of a spring constant 1120 N/m are placed on a smooth horizontal plane with the spring undeformed. Simultaneously velocities of 3m/s and 10m/s along the line of the spring in the same direction are imparted to A and B then a)When the extension of the spring is maximum the velocities of A and B are zero.b)The maximum extension of the spring is 25 cmc)Maximum extension and maximum compression occur alternately.d)The maximum compression occur for the first time aftersec.Correct answer is option 'B,C'. Can you explain this answer?.
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