Saved Bookmarks
| 1. |
Points P, Q and R are in a vertical line such that PQ = QR =h and P is the highest point. A ball at P is allowed to fall freely with initial velocity zero. t1 and t2 is time taken from PQ and QR, then which below given statements are correct 2 option are correctt1>t2 t1 : t2 = 1/✓2t1t2 t1: t2 = 1 : (✓2-1)t1 |
|
Answer» <P> Answer Applying second EQUATION of motion, For P to Q− h=0+ 2 1
gt 1 2
⟹t 1
= g 2h
For P to R− t 2
= g 2(2h)
Time taken to DESCENT PQ=t 1
= g 2h
Time taken to descent QR=t 2
−t 1
= g 2h
( 2
−1) Ratio =1:( 2
−1) |
|