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Q.40 A body starts falling from height 'h' and travels distance h/2 during the last second of motion. The time of travel (in sec.) is-?
Verified Answer
Q.40 A body starts falling from height 'h' and travels distance h/2 du...
Time = t
height = h
h = 1/2 gt^2
2h = gt^2
time to travel the first half = (t-1)
so, 
h/2  = 1/2 g (t-1)^2
h = g (t-1)^2
divide both equations
2= t^2 / (t-1)^2
taking under rot on both sides
t/t-1 = √2 = 1.414
t = 1.414 t - 1.414
t = 3.41 s
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Q.40 A body starts falling from height 'h' and travels distance h/2 during the last second of motion. The time of travel (in sec.) is-?
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Q.40 A body starts falling from height 'h' and travels distance h/2 during the last second of motion. The time of travel (in sec.) is-? 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 Q.40 A body starts falling from height 'h' and travels distance h/2 during the last second of motion. The time of travel (in sec.) is-? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Q.40 A body starts falling from height 'h' and travels distance h/2 during the last second of motion. The time of travel (in sec.) is-?.
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