MCQ
A balloon is rising vertically up at constant speed $10 \ m/ s$.A stone is dropped from it when the balloon is at a height of $40\ m$. otal distance covered by the stone before reaching the ground is (take $g=10 m/ s2)$
- A$40\ m$
- B$45\ m$
- ✓$50\ m$
- D$60\ m$