A cannon ball is fired from a catapult at 13.5 m/s at 24 degrees above the horizontal.
a. How long is it in the air?
b. What is the horizontal component of the velocity?
c. How far from the catapult does the ball land?
I used a program on my calculator that we are allowed to use and...
ohh ok now i got that...
so vx = .811 and vy = .585
so should i go and do the vf, vo, a, d, t set up?
like
vx .811
dx?
t
vfY
voY 0
aY -9.8
dY
t
and if so, how would i find a 3rd component to the Y part?
During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 1.11 km/s at an initial inclination of 35.8 degrees to the horizontal.
a.How far away did the shell hit? Answer in km.
b. How long was it in the air?
I have a...
Ok this is a follow-up type of question. The first problem was : A pelican flying along a horizontal path drops a fish from a height of 3.7 m. The fish travels 8.2 m horizontally before it hits the water below. What is the pelicans initial speed?
vx
dx 8.2
t
vfY
voY 0
aY -9.8
dY...
ohhhhh i think im getting that now...but then how would you find the initial velocity? it sounds like the easiest part but i still don't know how to fund it.
I found the time from d=vo(t) + 1/2 at^2
And never mind about the horizontal, because i found that with dx=vx(t)
The part thats still tricking me up is the vertival...I've never seen v^2 + u^2 + 2as before so idk how else i would find it
1. A plane drops a package from a height of 3230 m. The plane's horizontal velocity was 110 m/s at the instant the package was dropped. What is the magnitude of the overall velocity of the hamper at the instant it touches the ground?
2. d=vo(t) + 1/2at^2
3. dx
vx 110
t 25.7...
Yeah I used d=vo(t) + 1/2at^2 to find the time.
so to find the horizontal velocity, I would use dx=vx(t), right?
and then how would i go about finding the y?
Horizontal Projectile Motion Question...please help!!
1. A ball is thrown horizontally from the top of a building 22.8 m. high. The ball strikes the ground at a point 52.1 m. from the base of the building.
a. Find the time the ball is in motion.
b. Find the initial velocity of the ball.
c...
help please!!!
1. A ball is thrown horizontally from the top of a building 22.8 m. high. The ball strikes the ground at a point 52.1 m. from the base of the building.
a. Find the time the ball is in motion.
b. Find the initial velocity of the ball.
c. Find the x component of its velocity...