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After striking the floor, a Tennis ball rebounds to 4/5th of the height from which it has fallen. What will be the total distance (in m) that it travels before coming to rest if it has been gently dropped from a height of 90 metres?
  • a)
    675 metres
  • b)
    810 metres 
  • c)
    920 metres
  • d)
    1020 metres
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
After striking the floor, a Tennis ball rebounds to 4/5th of the heigh...
The first drop is 90 metres. After this, the ball will rise by 72 metres and falls by 72 metres, now this process will be continue in the form of an infinite GP with common ratio 0.8 and first term 72.
The required answer will be got by 

= 90 + 2(360)
= 810 m
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After striking the floor, a Tennis ball rebounds to 4/5th of the height from which it has fallen. What will be the total distance (in m) that it travels before coming to rest if it has been gently dropped from a height of 90 metres?a)675 metresb)810 metresc)920 metresd)1020 metresCorrect answer is option 'B'. Can you explain this answer?
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After striking the floor, a Tennis ball rebounds to 4/5th of the height from which it has fallen. What will be the total distance (in m) that it travels before coming to rest if it has been gently dropped from a height of 90 metres?a)675 metresb)810 metresc)920 metresd)1020 metresCorrect answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about After striking the floor, a Tennis ball rebounds to 4/5th of the height from which it has fallen. What will be the total distance (in m) that it travels before coming to rest if it has been gently dropped from a height of 90 metres?a)675 metresb)810 metresc)920 metresd)1020 metresCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for After striking the floor, a Tennis ball rebounds to 4/5th of the height from which it has fallen. What will be the total distance (in m) that it travels before coming to rest if it has been gently dropped from a height of 90 metres?a)675 metresb)810 metresc)920 metresd)1020 metresCorrect answer is option 'B'. Can you explain this answer?.
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