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How fast should a person with mass 50kg walk so that his kinetic energy is 625 J ?
  • a)
    15 km/s
  • b)
    0.5 m/s
  • c)
    5 m/s
  • d)
    5 Km/s
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
How fast should a person with mass 50kg walk so that his kinetic energ...
K.E = 0.5mv²
v = √(2K.E / m)
= √(2 × 625 Joule / 50 kg)
= √(625 Joule / 25 kg)
= 5 m/s...
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How fast should a person with mass 50kg walk so that his kinetic energ...
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How fast should a person with mass 50kg walk so that his kinetic energy is 625 J ?a)15 km/sb)0.5 m/sc)5 m/sd)5 Km/sCorrect answer is option 'C'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about How fast should a person with mass 50kg walk so that his kinetic energy is 625 J ?a)15 km/sb)0.5 m/sc)5 m/sd)5 Km/sCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How fast should a person with mass 50kg walk so that his kinetic energy is 625 J ?a)15 km/sb)0.5 m/sc)5 m/sd)5 Km/sCorrect answer is option 'C'. Can you explain this answer?.
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