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A : 50 kg man climbing a ‘slant length of 5 m along a 30° incline.
B : 25 kg man running with 2 m/s speed.
C : A force of 5 N acting on an object moving with 5 m/s speed for 5 min.
If the energies in A, B and C are EA, EB and EC respectively, then
  • a)
    EA < EB < EC
  • b)
    EA > EB > EC
  • c)
    EA < EB > EC
  • d)
    EB < EA < EC
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
A : 50 kg man climbing a ‘slant length of 5 m along a 30° in...
Ea = mv2/2 = 50 x 10 x 5sin30º = 250j
Eb = mv2/2 = 25 x 4/2 = 50j
Ec  = fvt = 5 x 25 x 60 = 7500j
Therefore, Eb < E< Ec
Community Answer
A : 50 kg man climbing a ‘slant length of 5 m along a 30° in...
D.
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A : 50 kg man climbing a ‘slant length of 5 m along a 30° incline.B : 25 kg man running with 2 m/s speed.C : A force of 5 N acting on an object moving with 5 m/s speed for 5 min.If the energies in A, B and C are EA, EB and ECrespectively, thena)EA < EB< ECb)EA> EB> ECc)EA< EB> ECd)EB< EA< ECCorrect answer is option 'D'. Can you explain this answer?
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A : 50 kg man climbing a ‘slant length of 5 m along a 30° incline.B : 25 kg man running with 2 m/s speed.C : A force of 5 N acting on an object moving with 5 m/s speed for 5 min.If the energies in A, B and C are EA, EB and ECrespectively, thena)EA < EB< ECb)EA> EB> ECc)EA< EB> ECd)EB< EA< ECCorrect answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A : 50 kg man climbing a ‘slant length of 5 m along a 30° incline.B : 25 kg man running with 2 m/s speed.C : A force of 5 N acting on an object moving with 5 m/s speed for 5 min.If the energies in A, B and C are EA, EB and ECrespectively, thena)EA < EB< ECb)EA> EB> ECc)EA< EB> ECd)EB< EA< ECCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A : 50 kg man climbing a ‘slant length of 5 m along a 30° incline.B : 25 kg man running with 2 m/s speed.C : A force of 5 N acting on an object moving with 5 m/s speed for 5 min.If the energies in A, B and C are EA, EB and ECrespectively, thena)EA < EB< ECb)EA> EB> ECc)EA< EB> ECd)EB< EA< ECCorrect answer is option 'D'. Can you explain this answer?.
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