Saved Bookmarks
| 1. |
a body of mass m is projected with Initial speed u at an angle theta with the horizontal. the change in momentum of body after time t is?answer with full explanation |
|
Answer» as we know that a projectile motion is a COMBINATION to horizontal and verticle motion.The vetical component of intial VELOCITY ‘u’ ALWAYS remains constant ,i.e. in this case ,ux=ucoso, throughout the motion.So change in momentum in horizonal direction is 0(zero).Now analysing the VERTICAL direction motion we know intial velocity in vertical direction uy=usino.After time t,vy=usino-gt,(USING eq. of motion ,v=u+at)Thus, Change in momentum in vertical direction =m.vy-m.uy =m.(usino-gt)-(m.usino)=-mgtif it is correct pls follow and thank me and also put it as brainliest |
|