3. A balloon is rising up with a velocity of 30m/s. A stone is dropped from it and it reaches the ground in
15 sec. What is the height of the balloon when the stone was dropped from it?
A) 640m
B) 645m
C) 652.5m
D) 650m
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2
Answer:
correct answer is B)645m.
Answered by
7
Answer:
This is a question of kinematics
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