Vertical Definition and 997 Threads

the best rebounders in basketball have a vertical leap (that is, the vertical movement of a fixed point on their body) of 120cm. a) what is their initial "launch" speed off the ground? b) how long are they in the air? i don't want you guys to give me an answer. Can you guys point me...

I am having problems with the following questions. Any help would be greatly appreciated! 19) Automobile travels at constant speed of 60 km/hr (16.7m/s), 800 m along a straight highway that is inclined 5 degrees to the horizontal. An observer notes only the vertical motion of hte car. What is...

Thanks everyone for helping with my last question. Here's another one...(I'm actually in a Physics class, not just asking for "s and g." My TA for the class doesn't have a clue what she's talking about.) A rock is thrown off the edge of a sea cliff. 3.2 seconds later you hear the sound of...

Thanx! Appreciate that!

in vertical 3D http://flash.li.ru/wrestle/3103/game/curveball.swf

Two rollers have a belt that goes between them, like a conveyerbelt. The assembly stands vertical. The lowest of the rolls have a force that acts on its center, and downwards. My book says that this force F can be written as F=S_1-S_2 where S are the forces that the belt produces as a...

1.)Given a cylinder of vertical height, H and radius R. h = H/R So what does this equation means? what is h? 2.)Given L is the length from the cylinder base to an element at ground level, s = L/R. So what does s stand for?

The independance of horizontal and vertical motion... Obviously it is possible to prove the independance of horizontal and vertical motion empirically - we only need look at projectile motion following a parabolic path. However, I have never found a convincing algebraic proof the for the...

if a vertical spring is being compressed down, is the Elastic potential energy the only energy? Ee = .5kx^2 is gravity included in that? or does it not play a role? and how could I tell how far an object would fly up in the air once the spring is released? thanks

"In a lift accelerated upwards at a certain rate, a spring balance indicates a weight to have a mass of 10kg. When the lift is accelerated downwards at twice the upward rate, the mass appears to be 7kg. Find the actual mass and the upward acceleration of the lift." In short, I am stuck. I...

16x^2+9y^2+192y-36y+468=0 Was the original conic i had to conver this into standard form and got \frac {(x+6)^2} {9} + \frac {(y-2)^2} {16} =1 Im not sure if this is a horizontal or vertical ellipse

A rope of mass m and length L is suspended vertically. Show that a transverse wave pulse will travel the length of the tope in a time t = 2(L/g)^1/2. stuck... i tried: v = (T/u)^1/2 ; where T = m(X/L)g and u = m/L the X is the distance from the bottom of the string... so i got v=...

Is there a way to mathematically or physically prove that horizontal motion and vertical motion are effectively independant? ie - is it possible to derive this fact from, say, vectors? I know that is is true - the parabola shape of projectiles wouldn't make sense otherwise, but is there a...

Determine the restrictions on the constants A, C and E such that the following equation is a parabola with a vertical axis of symmetry. Ax^2+Cy^2+x+Ey=0 a) A=0, C cannot=0, E cannot=0 b) A=0, C cannot=0, E=0 c) A cannot=0, C=0, E=0 d) A cannot=0, C=0, E cannot=0 i know that A cannot=0...

y=logx4 state domain and range, x-intercept, vertical asymptote. I have never seen a question like this before. Please help me!

determine the minimum height of a vertical flat mirror in which a person 5'0'' in height can see his or her full image. I have absolutely no idea how to solve this type of problem... Since we don't know the distance between the object and the mirror, how in the world can we calculate the...

Okay, here's the deal: Basketball player Darrell Griffith is on record as attaining a standing vertical jump of 1.2 m (4 ft). (This means that he moved upward by 1.2 m after his feet left the floor.) Griffith weighed 890 N (200 lb). (B) If the time of the part of the jump before his feet...

Ok here is the question.. In a carnival you win a stuffed giraffe if you toss a quarter in a small dish. Dish is 2.1 m away from your hand in a shelve above the point where the coin leaves your hand (y). Initial velocity must be 6.4 m/s. a) find y and b) what is the vertical component of...

:frown: Two basketball players are essentially equal in all respects. (They are the same height, they jump with the same initial velocity, etc.) In particular, by jumping they can raise their centers of mass the same vertical distance, H(called their "vertical leap"). The first player...

There is a maximum height of a uniform vertical column made of any material that can support itself without buckling, and it is independent of the cross sectional area (why?). Calculate this height for a) steel (density 7.8x10^3) b) Granite (density 2.7x10^3) I'm just really confused on how...

A particle m is moving in a vertical circle of radius R inside a track. There is no friction. When m is at its lowest position, its speed is v0. Suppose v0 is 0.775 vmin [ vmin = root(5gR) ]. The particle will move up the track to some point at P at which it will lose contact with the track and...

Show that the conservation of energy holds also for the vertical spring where x is measured from the vertical equilibrium position (x_0 = mg/k) for a mass m. This is what I did so far. Where do I go from here? f = mg - kx_0 = 0 kx_0 = mg E = KE + PE_grav + PE_spring = ([mv^2]/2) - mg(x...

Determining maximum vertical height A block slides down a curved frictionless track and then up an inclined plane. The mass of the block is the point mass m. The coefficient of friction between the block and the incline is μk = 0.30 Use energy methods to find the maximum vertical height up the...

Hey! All right, so, in Physics, we've been learning about pressure, and now we're tying it in with elements of calculus. Today, we began covering fluid pressures on vertical surfaces, and though I've understood most of it (8 out of 10 on a 10 problem assignment), this one problem has me...

An object of unknown mass is hung on the end of an unstretched spring and is released from rest. If the object falls 3.42 cm before first coming to rest, find the period of the motion. Doing a summation of forces, i see that the force constant k times the displacement y is equal to the...

How would I calculate water pressure in a vertical column? I had about a 17 foot PVC tube with a 4" diameter filled with water. What equations could I use?

There is a maximum height of a uniform vertical column made of any material that can support itself without breaking, and it is independent of the cross-sectional area. (a) Calculate this height for steel (density 7.8 103 kg/m3). (b) Calculate this height for granite (density 2.7...

this one question has got me confused...any help/hint would be appreciated. an electron is traveling horizantally at a speed of 8.7*10^6 m/s enters an electric field of 1.32*10^3 N/C between two horizantal plates (shown below) + ___________________ e- ----> - ___________________...

I'm not sure what formula to use on this? A ball of mass 15.9 g is attached to a cord of length 0.478 m and rotates in a vertical circle. The acceleration of gravity is 9.8 m/s^2 What is the minimum speed the ball must have at the top of the circle so the cord does not become slack...

I solved the first one... Problem 17-103 -- The two pin-connected bars each have a weight of 10 lb/ft. If a moment of M = 60 lb*ft is applied to bar AB, determine the initial vertical reaction at C and the horizontal and vertical components of reaction at B. Neglect the size of the roller...

Can someone please help me with this problem? I've tried a few different things but none of them worked... The weight of the block in the drawing is 99.0 N. The coefficient of static friction between the block and the vertical wall is 0.510. (a) What minimum force F is required to prevent...

I have a ferris wheel problem with four parts. I have completed the first three. Acceleration, Centripetal force on top and on bottom. However, I am having a hard time to come up with a FBD for a cart which is halfway up. I got a normal force towards the top, and gravity towards the bottom. So...

I just started doing some problems and this basic pm problem is giving me a lot of trouble. If a ball was throwen horizontally with 45.08 m/s, how far would the ball fall vertically by the time it reached home plate, 18.28m away? The initial velocity is 45.08 m/s. Now that is the x and y...

A Standing Vertical Jump. Basketball player Darrell Griffith is on record as attaining a standing vertical jump of 1.2 m (4 ft). (This means that he moved upward by 1.2 m after his feet left the floor.) Griffith weighed 890 N (200 lb). 1.) Use Newton's laws and the results of part (B) to...

The question is fine a equation f(x) that has a vertical asymptotes of X=1and X=3 and a horizontal asymptotes of Y=1 A) (x-1)(x-3) / y-1 = x^2-4x+3 / x-1 OR B) (x-1) /(x-1)(x-3) = just the oppsite of above is any of these correct? I think B is correct but right now I can't...

Please help me with this problem! :confused: I can't seem to get it set up quite right. A high diver leaves the end of a 5 m high diving board and strikes the water 1.3s later 3 m beyond the end of the board. Considering the diver as a particle,d etermine a) her initial velocity, B. the...

a skier is accelerating down a 30.0 degrees hill at 3.10 m/s^2. What is the vertical component of her acceleration? I did 3.10 m/s^2 *sin(30) and got -1.55 m/s^2, but as usual, my answer is wrong... :cry: The box for the answer looks like this: ____m/s2 (downward)... am I wrong because I...

A 160 kg horizontal beam is supported at each end. A 300 kg piano rests a quarter of the way from one end. What is the vertical force on the support closest to the piano? How do i do this? :confused:

I have a question about rotational movement in the vertical plane. I know I'm supposed to use polar coordinates to solve it, but since our professor only taught us how to derive the formulas and gave us no examples, I have no idea how to approach this problem. A 227-g block B fits inside a...

Alright, so I've scanned my book and I am thuroughly confused. My friend has an identical problem (the numbers are different), and we can't even start working on the problem. Of course, I'm not looking for an answer. I'm just trying to get started here... what I'm thinking is that I...

I need to calculate vertical velocity for a perjectile

A child is playing with a ball on a string. The ball has mass 0.065 kg, the string has radius 1.2 m and assume that the string is massless. The child swings the ball on a string in a vertical circle. Halfway up the circle the speed of the ball is measured to be 8.7 m/s. What is the maximum...

a toy is thrown up; its initial vertical component of velocity is 61 m/s and its initial horizontal component of velocity is 10m/s what is the toys speed two seconds later; please help

A 66.9 g mass is attached to the end of an unstressed vertical spring (of constant 63 N/m) and then dropped. What is its maximum speed? How far does it drop before coming to rest momentarily? I wasn't sure how to go about this problem. If anyone could help?

"Easy" Vertical Motion Question Hey, This question was on my test today, but it didnt seem right to me.. Q) An object is thrown vertically at 18m/s from a window and hits the ground 1.6s later. What is the height of the window above the ground? Is this even possible?

I have recently came across design capacity tables for structural steel (hollow sections). - In the table it shows that 273.1 x 12.7 CHS will not buckle at 1 metre of height (below that, size 219.1 x 12.7 at the same height will buckle at 10 kN less than full capacity if it were fully...

[SOLVED] Help with a few problems A pair of fuzzy dice is hanging by a string from your rearview mirror. While you are accelarting from a stoplight to 20 m/s (in 5 seconds), what angle does the string make with the vertical? A train traveling at a constant speed rounds a curve of radius 275...