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The potential energy of a particle of mass m free to move along x-axis is given by  for x < 0 and U = 0 for  x ≥ 0 (x denotes the x-coordinate of the particle and k is a positive constant). If the total mechanical energy of the particle is E, then its speed at 
  • a)
  • b)
    0
  • c)
  • d)
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The potential energy of a particle of massmfree to move alongx-axis is...
From conservation of energy
K.E. + P.E. = E

∴  
The speed of particle at  is zero. 
 
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Most Upvoted Answer
The potential energy of a particle of massmfree to move alongx-axis is...
From conservation of energy
K.E. + P.E. = E

∴  
The speed of particle at  is zero. 
 
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The potential energy of a particle of massmfree to move alongx-axis is given byforx< 0andU= 0for x≥ 0(xdenotes thex-coordinate of the particle andkis a positive constant). If the total mechanical energy of the particle isE, then its speed ata)b)0c)d)Correct answer is option 'B'. Can you explain this answer?
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