Projectile Motion: Solving for Optimal Cannon Angle in Avalanche Triggering

[barryj]

Vx = 1000Cos(23)
t = 2000/Vx

Vx = 1000sin(23)
d = d0 + v0t + (1/2)at^2
d = 0 + Vxt + (1/2)(-9.81)t^2
d should be 800.

Then do it for the 89 deg angle but keep lots of digits in the calculation

 

[babysnatcher]

mm. It is pretty packed when you write it like that. My advice - keep in mind that you have 5 hours a day for out-of-class study, and make sure that you have done the important stuff within this time (for example, doing the set problems), and if you have some of that 5 hours left over, then you can do the less important stuff (like reading other physics texts, and doing extra problems).

I knew a guy who worked 17 hours per day (and he did the same amount on weekends too). He was manager of a pub, and he had to be working at the pub literally any time that the pub was open. Pretty crazy.

i do all the odd basic problems that are separated by specific corresponding sections, and read. if i have time, i do the general/additional/cumulative problems.

 

[barryj]

i do all the odd basic problems that are separated by specific corresponding sections, and read. if i have time, i do the general/additional/cumulative problems. GOOD. As you probably know,the only way to truly learn is to practice.
Are you studying to be an engineer??

 

[babysnatcher]

i do all the odd basic problems that are separated by specific corresponding sections, and read. if i have time, i do the general/additional/cumulative problems. GOOD. As you probably know,the only way to truly learn is to practice.
Are you studying to be an engineer??

no, but i want to and I am a long way from there. i have to take the math sequence, physics sequence chem sequence because of ChE and bio sequence because berkeley and only berkeley wants that on top of the other sequences so ima have to take a lot of science before the ChE courses.