Saved Bookmarks
| 1. |
Two balls are thrown upward with velocities 20m/s and 30m/s. What is the ratio of their displacements in last second of their upward motion? |
|
Answer» Answer: DISPLACEMENT during LAST 1s downward journey = displacement during FIRST 1s of upward journey hence REQUIRED ratio = 1:1 s=1/2gt² =5m when g=10m/s² |
|