A man of mass is standing in a gravity free space at a height of above the floor. He throws a stone of mass downwards with a speed . When the stone reaches the floor, the distance of the man above the floor will be:
- A
- B
- C
- D
Solution & Step-by-step Explanation
In gravity-free space, there is no external force on the man-stone system. The center of mass remains at its initial position ( above the floor).
Let the man move up by distance while the stone moves down by .
Using :
Total height of the man from the floor = .
Let the man move up by distance while the stone moves down by .
Using :
Total height of the man from the floor = .