Physics Hw SHIT PLZ

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>>8591247
A man fires a .22 revolver directly up into the sky. How long will the bullet fall back to earth? Assume the bullet's path of trajectory is free of all forces besides gravity and initial launch.

>>8591247
You have to split the vectors of the velocities into horizontal and vertical (using trigonometry). Then you determine how long it takes for the ball to hit the ground by taking gravity, vertical velocity and initial height into consideration. Then you take that time and multiply it to the horizontal speed to find the distance. Don't forget to keep your units the same (ie. Meters to meters, seconds to seconds instead of meters to inches and seconds to minutes).

>Anybody with high school level of understanding of physics can you help me with these problems.

Right, but we're not the ones in highschool, you are.

Just think about it in terms of x and y, them being the legs of a triangle with it's right angle being the base of whatever domicile is chosen. For calculating the distance between the base of the cliff and Mr. Caprio, you'll be finding how many meters the ball has traveled in the horizontal, which is represented by the x component of your "free body diagram" (let's hope you have one written down). So use the correct kinematic equations to solve for your "x final" value. Same goes with initial/final velocities and time.

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>>8591355
>How long will the bullet fall back to earth?
as long as it takes it to go to max height
after t=2v0/g it is back, about a minute

>>8591607
>vectors of the velocities

Initial velocit((y)(ies))

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>>8591247
Here you go, anon. All the answers laid out for you. No need to study :^)

Does anyone else get a thrill from doing this? Solving someone's trivial homework problems I mean. It excites me. As I'm doing it, all I can think of is the panicked scribbling they'll be doing on the exam. The sheer horror as they try to remember how to do the problems. Then they think back and remember all the times they had someone else, someone like me, do their thinking for them. It's like I'm draining the brain out of them. It makes me feel so powerful as I'm making brainlets ever dumber! hahahahaha there you go anon, turn it in!

>>8591742
Also 3c I forgot to add the angle. It's just arctan(-33.86/10.78) = -72.34 degrees = 287.66 degrees.

>>8591247
Take a break from all that worrying. Smoke a "jay" or crack a beer. Watch some television. Come back if you need anymore homework problems done for you :^)

>>8591355
t = sqrt(2h/g)
where g = acc. due to gravity,
and h = (v^2)/(2*g),
v = initial velocity.

Just plug in your .22 revolver's muzzle velocity.