Yes, It is a purely kinematic problem. Masses are given so you can use momentum conservation when attempting to find the recoil velocity of the UFO and relation the angle of deviation of the system of projectiles and their velocity (note the missiles do not explode when they meet).
I do not...
When I tried solving this question, following the steps I put above, I got stuck in a system of two equations, involving trigonometric equations like:
cosθ = a + b*v2
sinθ = c - d*sin(2θ),
where a,b are positive constants and c, d are functions of v2. I am not really sure if these are exactly...
The picture shows a top view of the situation, so the gravitational acceleration vector is pointing down (into the page). I do not think it would be necessary to use gravity in this question, since it is being ingored, though.
Still, it is also a good point and I will check to make it clear...
Ohh, that is a good point! I intended to say it was initially at rest, but still flying, not supported. May be that problem is due to bad translation, since I first wrote the statement of the question in my native language.
Thank you very much, I will try to correct it. :smile:
What I think it's interesting about this question is the fact that the UFO also recoils after shooting the missile. So, what I expect them to answer is something like:
1-) Adopt a reference frame and calculate how much time the UFO's missile takes to hit the other projectile.
2-) Using momentum...
Hi!
I've just created this question for my undergraduated students that are going to apply for an engineering institute. I'm not quite sure if it's a nice question, so I'd like to know your opinions or suggestions about it (and yours solutions, of course!)
A flying saucer with mass 5m and...