InterviewSolution
Saved Bookmarks
| 1. |
98. A scooter going due east at 10 m s turns rightthrough an angle of 90°. If the speed of the scooterremains unchanged in taking this turn, the changein the velocity of the scooter is:(1) 20.0 m sin south-western direction(2) zero(3) 10.0 ms in south-east direction(4) 14.14 m s- in south-western directiontinn from rest to move in |
|
Answer» 10 in south east direction Let east be +i ( +ve x axis) and north be +j ( +ve y axis) now velocity of scooter Initial = 10i if it turns right of east , mean he goes to southvelocity final = -10j now change in speed = -10j-10i = √(10)²+(10)² = 10√2 = 14.14 direction is -i-j ( south west) option 4 |
|