P.Q and r are three balloons ascending with velocities u, 4u and 8u respectively. W stones of the same mass be dropped from each, when they are at the same height, then (1) they reach the ground at the same time (2) stone from p reaches the ground first (3) stone from r reaches the ground first (4) stone from q reaches the ground first
Answers
Answer:
When the stones will be released from the balloons, the R balloon will have highest velocity upwards with gravity acting downwards. So it will take more time to stop and go downwards.
Keeping this concept, balloon P will have least velocity upwards. Gravity will stop it early and it will reach the ground fastest.
OPTION 2 IS CORRECT.
Hope you will be able to understand.
Answer:
(2) stone from P reaches the ground first.
Explanation:
The balloons are ascending. So the stones will rise above the point at which they were let go.
The faster the balloon is going the higher the stones will rise.
Now it takes more time for them to reach the top, then it takes more time to fall that greater distance.
So the faster the balloon is going the longer it takes for the stone to reach the ground.
The stone moving at u must be the first to reach the ground.
That is, stone P.