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A body of mass m is projected with a speed v making an angle thita with the vertical what is the change in momentum of body along x axis.

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2 years ago

Susmita
425 Points
```							Remenber  that momentum=mass×velocityOr,p=mvIn this case the velocity v makes an angle theta with the vertical.So vertical component or y component of velocity is vy=vcostheta and horizontal component of velocity is vx=vsintheta.As mass is constant,so change is momentum will correspond to change in velocity.Now velocity changes according to the equationv=u+ftIn this problem,acceleration f only has a vertical component g(due to earths gravitational field)and there is no acceleration in the horizontal direction(as we have not applied any horizontal force)..Sofy=g and fx=0.vx=ux+fxtor,vx=uxTherefore velocity along x direction does not change during the motion.So there is no change in momentum along x direction.Please approve the answer if you are helped.
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2 years ago
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• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions