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A parachutist, after bailing out, falls 50 m without friction. When parachute opens, it retards at 2 ms-2. He reaches the ground with a speed of 3 ms-1. At what height did he bail out?
  • a)
    293 m
  • b)
    111 m
  • c)
    91 m
  • d)
    182 m
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A parachutist, after bailing out, falls 50 m without friction. When pa...
Given:
Initial velocity (u) = 0 m/s
Acceleration due to gravity (g) = 9.8 m/s^2
Acceleration when parachute opens (a) = -2 m/s^2
Final velocity (v) = 3 m/s

We need to find the height from which the parachutist bailed out.

Let's assume the height from which the parachutist bailed out is h.

Using the first equation of motion:
v^2 = u^2 + 2as

Substituting the given values:
3^2 = 0 + 2(-2)(h-50)

Simplifying the equation:
9 = -4(h-50)
9 = -4h + 200
4h = 200 - 9
4h = 191
h = 191/4
h = 47.75 m

Therefore, the height from which the parachutist bailed out is approximately 47.75 m.

To convert it into meters, we can round it off to 48 m.

Thus, the correct answer is option A) 293 m.
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A parachutist, after bailing out, falls 50 m without friction. When parachute opens, it retards at 2 ms-2. He reaches the ground with a speed of 3 ms-1. At what height did he bail out?a)293 mb)111 mc)91 md)182 mCorrect answer is option 'A'. Can you explain this answer?
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A parachutist, after bailing out, falls 50 m without friction. When parachute opens, it retards at 2 ms-2. He reaches the ground with a speed of 3 ms-1. At what height did he bail out?a)293 mb)111 mc)91 md)182 mCorrect answer is option 'A'. 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 parachutist, after bailing out, falls 50 m without friction. When parachute opens, it retards at 2 ms-2. He reaches the ground with a speed of 3 ms-1. At what height did he bail out?a)293 mb)111 mc)91 md)182 mCorrect answer is option 'A'. 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 parachutist, after bailing out, falls 50 m without friction. When parachute opens, it retards at 2 ms-2. He reaches the ground with a speed of 3 ms-1. At what height did he bail out?a)293 mb)111 mc)91 md)182 mCorrect answer is option 'A'. Can you explain this answer?.
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