Saved Bookmarks
| 1. |
34. A particle has initial velocity (21 + 3j) andacceleration (0.3 +0.21). The magnitudeof velocity after 10 second will bea) 9V2 units c) 5 unitsb) 572 units d) 9 units |
|
Answer» Correct answer is (b) Use v=u+atV=(2i+3j)+10(0.3i+2j)=(2+3)i+(3+2)j=5i+5jhencemagnitude will be √5^2+5^2=5√2 units option c tha correct answer is option b |
|