Home Physics JEE Main Full Syllabus Mock Test 75 Question New Syllabus TEST 12 PCM A balloon is moving vertically upward with c…
Physics JEE Main Full Syllabus Mock Test 75 Question New Syllabus TEST 12 PCM MCQ (Single Correct)

A balloon is moving vertically upward with constant acceleration in upward direction particle 'A' was dropped from the balloon and 2 sec . later another particle 'B' was dropped from the same balloon. Assume that motion of the balloon remains unaffected. Find the separation distance between 'A' and 'B', 6 sec after dropping the particle 'B' None of the particles reaches the ground during the time interval under consideration ( )

A
190 m
B
210 m
C
230 m
D
220 m

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Text Solution

Verified by Experts
The correct answer is:
B

Since particles are being dropped from a moving body i.e., a moving reference frame, we used reference frame of balloon itself for both the particles.
Motions of particles 'A' and 'B' are w.r.t. balloon, so . balloon is reference point therefore it is assumed to be at rest.
We denote balloon by b
For

(A falls off 8 sec)

For

Separation distance between 'A' and 'B'

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