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A small block of mass M moves on a frictionless surface of an inclined plane, as shown in figure. The angle of the incline suddenly changes from 60° to 30° at point B. The block is initially at rest at A. Assume that collisions between the block and the incline are totally inelastic (g = 10 m/s2). Figure : [JEE 2008]
                        
The speed of the block at point C, immediately before it leaves the second incline is
  • a)
     
  • b)
  • c)
  • d)
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A small block of mass M moves on a frictionless surface of an inclined...
At point B since the block undergoes inelastic collision, the component of velocity perpendicular to the incline becomes zero and only the component of velocity parallel to the incline is left.

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A small block of mass M moves on a frictionless surface of an inclined...
At point B since the block undergoes inelastic collision, the component of velocity perpendicular to the incline becomes zero and only the component of velocity parallel to the incline is left.

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A small block of mass M moves on a frictionless surface of an inclined...
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A small block of mass M moves on a frictionless surface of an inclined plane, as shown in figure. The angle of the incline suddenly changes from 60° to 30° at point B. The block is initially at rest at A. Assume that collisions between the block and the incline are totally inelastic (g = 10 m/s2). Figure : [JEE 2008] The speed of the block at point C, immediately before it leaves the second incline isa)b)c)d)Correct answer is option 'B'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about A small block of mass M moves on a frictionless surface of an inclined plane, as shown in figure. The angle of the incline suddenly changes from 60° to 30° at point B. The block is initially at rest at A. Assume that collisions between the block and the incline are totally inelastic (g = 10 m/s2). Figure : [JEE 2008] The speed of the block at point C, immediately before it leaves the second incline isa)b)c)d)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A small block of mass M moves on a frictionless surface of an inclined plane, as shown in figure. The angle of the incline suddenly changes from 60° to 30° at point B. The block is initially at rest at A. Assume that collisions between the block and the incline are totally inelastic (g = 10 m/s2). Figure : [JEE 2008] The speed of the block at point C, immediately before it leaves the second incline isa)b)c)d)Correct answer is option 'B'. Can you explain this answer?.
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