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A body at rest is dropped from a height h and strikes the ground with a velocity 3 m/s. Another body of same mass is dropped from the same height with an initial velocity of 4 m/s. The final velocity of second mass, with which it strikes the ground, is (take g=10 m/s2)
  • a)
    3 m/s
  • b)
    4 m/s
  • c)
    5 m/s
  • d)
    8 m/s
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A body at rest is dropped from a height h and strikes the ground with ...
here the height h remains same for both the bodies,,,
so accrding to eq. of motion ..

v2-u2 =2ah..here a is accl. due to gravity ...so it is also same for both the bodies ..

hence 2ah =const..

so

3^2=v^2-4^2
9=v^2-16
v^2=25
v=5m/s..
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A body at rest is dropped from a height h and strikes the ground with a velocity 3 m/s. Another body of same mass is dropped from the same height with an initial velocity of 4 m/s. The final velocity of second mass, with which it strikes the ground, is (take g=10 m/s2)a)3 m/sb)4 m/sc)5 m/sd)8 m/sCorrect answer is option 'C'. Can you explain this answer?
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A body at rest is dropped from a height h and strikes the ground with a velocity 3 m/s. Another body of same mass is dropped from the same height with an initial velocity of 4 m/s. The final velocity of second mass, with which it strikes the ground, is (take g=10 m/s2)a)3 m/sb)4 m/sc)5 m/sd)8 m/sCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A body at rest is dropped from a height h and strikes the ground with a velocity 3 m/s. Another body of same mass is dropped from the same height with an initial velocity of 4 m/s. The final velocity of second mass, with which it strikes the ground, is (take g=10 m/s2)a)3 m/sb)4 m/sc)5 m/sd)8 m/sCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A body at rest is dropped from a height h and strikes the ground with a velocity 3 m/s. Another body of same mass is dropped from the same height with an initial velocity of 4 m/s. The final velocity of second mass, with which it strikes the ground, is (take g=10 m/s2)a)3 m/sb)4 m/sc)5 m/sd)8 m/sCorrect answer is option 'C'. Can you explain this answer?.
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