Interesting scenario in resisted motion (1 Viewer)

[hayabusaboston]

Hi guys I was thinking about resisted motion and thought up a scenario, and I was wondering if its a possible question to solve. So, let the rightward direction be positive and the leftward direction be negative. An object is projected with initial velocity U in the positive direction at an angle of theta. What force of resistance is required if the object is to land at (-a,0)?

So its like throwing a light ball where its super windy, if the wind is strong enough it will blow the ball past the point of projection in the opposite direction.

Is that possible to solve or are more details required?

O I should probably rephrase, "Object is projected from (0,0) at an initial velocity U and angle theta in the positive direction, with a constant force of resistance acting on it. The object reaches maximum height and positive horizontal distance at a point P(x,y) before the force of resistance pushes the object back in the negative direction where it lands at a point Q(-a,0). Find the value of the force of resistance."

Ive only done 7.1 and 7.2 from terry lee MX2 book and it APPEARS like that is all u need to solve this, but I haz not many ideas of what to do lol.

Seanieg, realise, carrotsticks, largarithmic, u guys out there?? lieutenant_21??>

 

[hayabusaboston]

Somebody tell me pleaz, is this a question which one can do?

 

[hayabusaboston]

Whyy isss noooo ooone answering this thread. Hm.

 

[hayabusaboston]

I did 11 hrs of random chem n phys stuff today! I cannot brain now. I has the dumb. lol.

sigh.

Someone solve this question. I cannot brain it.

 

[asianese]

You need to consider the forces on the object. You only have weight force when it is in air frictionless flight. You just need to think about the direction and magnitude of the other force you want to consider. The equations of normal projectile motion don't work at all now - derive them again. Think of directions of accelerations. Integrate, blah, blah.

 

[hayabusaboston]

You need to consider the forces on the object. You only have weight force when it is in air frictionless flight. You just need to think about the direction and magnitude of the other force you want to consider. The equations of normal projectile motion don't work at all now - derive them again. Think of directions of accelerations. Integrate, blah, blah.

Waait I just realised that 7.1 and 7.2 is only up and down motion LOL, havent thought about the angle AHAHAHA

 

[asianese]

It doesn't matter what angle is it fired at...consider COMPONENTS.