Vishal posted an Question
January 07, 2020 • 13:27 pm 50 points
  • SSC
  • Quantitative Aptitude

Q. A hydrogen filled balloon ascending at the raof 18 kmph was drifted by wind. Its angle of elevation at 10th and 15th minutes were found to be 60" and 45 resp

Q. A hydrogen filled balloon ascending at the raof 18 kmph was drifted by wind. Its angle of elevation at 10th and 15th minutes were found to be 60" and 45 respectively. The wind speed (in whole numbers) during the last five minutes, approximately, is equal to (a) 7kmph (c) 26kmph (b) 11kmph (d) 33kmph

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  • Yogeshbishnoi30 best-answer

    answer is 33kmph.. there will be two equations first being tan60=p¹/b¹ and second one is tan45=p²/b² we need to find the average velocity between last 5 mins. so the average velocity will be total displacement/total time. displacement we can find from the above two equations and the time is mentioned 5 mins

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