Horizontal Definition and 960 Threads

Question? There is a Large Cube, with a mass of 25 kg, it is being accelerated across a horizontal FRICTIONLESS surface by a horizontal force P. There is a small cube with a mass of 4 kg in contact with the front surface and will slide down and fall off unless P is sufficiently large. The...

Theory says that a cubical box when subjected to a force horizontally(not at the centre of gravity) then the force will tend to rotate the box around the centre of gravity. Any proof can be given for this?

Ahh I am already stuck on a question. I just need help getting started. Anyways this is the question A tennis player serves a ball horizontally, giving it a speed of 24 m/s from a height of 2.5 m. The player is 12 m from the net. The top of the net is 0.90 m above the court surface. The...

how do you figure out horizontal force necessary to move an object if the coefficient of kinetic friction is zero?

The figure shows a small object of mass m = 1kg can slide without friction on a wedge of mass M = 3kg inclined at angle \delta=30 degree . What horizontal force F must be applied to the wedge if the small block is not to move with respect to the wedge? I do it in this way: By Newton`s 3rd...

Air Resistance & Horizontal Distance Warning: Calculus Required This was a discussion question in my class's Young & Freedman University Physics book. Page 150, Chapter 5, #29. Q5-29 When a batted baseball (kicked football, whatever floats your boat, assume the initial vertical position...

Two masses M1=3.80kg and M2=8.10kg are stacked on top of each other as shown in the figure. The static coefficient of friction between M1 and M2 is μs=0.400. There is no friction between M2 and the surface below it. What is the maximum horizontal force that can be applied to M1 without M1...

What do some fish have a horizontal tail fin, while others have a vertical tail fin ? Are there some functions that one type performs better than the other... if so, what advantages would a vertical tail fin have over a horizontal one? What advantages would a horizontal tail fin have over...

Four blocks are on a horizontal surface. https://www.physicsforums.com/attachment.php?attachmentid=4000&stc=1 randomlabel.png The blocks are connected by thin strings with tensions Tx, Ty, Tz. The masses of the blocks are A=44.0 kg, B=21.0 kg, C=24.0 kg, D=35.0 kg. Two forces, F1=75.0N...

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...

Be advised this is not a homework question, even though it is in regards to a physics book I purchased over the summer to get a headstart on my upcoming AP class. I was reading the chapter about acceleration, and the book seems to state that there is no such thing as horizontal acceleration...

The horizontal pipe has a cross-sectional area of 40.0 cm^2 at the wider portions and at the constriction. Water is flowing in the pipe, and the discharge from the pipe is 6.0 x 10^-3 m^3/s (6.0 L/s). a) Find the flow speed at the wide portion. b) Find the flow speed at the narrow portion...

Find the point(s) (x,Y) at which the tangent line to x^2+4y+22=y^2+10x is horizontal.

and does not slide off. in this case does centripetal force = frictional force? I think the answer is yes, but want to make sure. thanks

How do i find out the horizontal force the wheels on a toy car exert on the ground if i know the acceleration and the coefficient of friction? I have a coefficient of friction of 0.62 and an acceleration of 0.40056 m/s^2 Any help is helpful =) thank you.

Given coefficient of kinetic friction is zero and the coefficient of restitution is e: A particle of mass m, collides at an angle (theta), with speed v, onto an infinite mass horizontal surface. Collision time is 0.2 seconds. What is the horizontal distance traveled by the particle...

the question: a board 2 ft long with weight 50 lb is pressed against a wall. what force, applied at 30 degrees, should be applied to keep it horizontal? i'm not sure how to go about this, so i started by converting the weight of 50 lb to 22.67 kg, then getting a force of mass at 2.31 N then...

am i doing this right? Determine a value of the constant b so that the graph of y=x^2+bx+17 has a horizontal tangent at (2, 21+2b) ans: y'(2)=0 y'=2x+b 0=2(2)+b b=-4 what do u need the y-coordinate (21+2b)for? My teacher also requires me to draw a diagram...can anybody show me a diagram...

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 12 kg sled is pulled along at a constant velocity on a horizintal surface by a horizontal force of 11N. How much horizontal force is needed to pull the sled at a constant velocity it two 57 kg girls are sitting in it? How would I go about solving this? Thanks, Amanda

ok, so i got this assignment for the march break and our teacher hit us with this weird question. You are pushing horizontally on a 3.0kg block of wood, pressing it against the wall. if the coefficient of friction between the block and the wall is μ = 0.60, how much force must you exert on...

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...

Can anyone give me some clues as how to do this problem. I have been on it for ever and am stumped. Any help greatly appreciated. Thanks Two wires are tied to the 2.0 kg sphere shown in the figure . The sphere revolves in a horizontal circle at constant speed. For what speed is the tension...

A hunter aims directly at a small target (on the same level) 68 m away. If the bullet leaves the gun at a speed of 186 m/s, by how much will it miss the target? I just need to know what formula I should use to solve this problem?

A man is puling a box across the floor. Assume that the force of friction can be ignored and that the acceleration of the box is 1.27 m / s^2. Find the angle to the horizontal that the man must pull. Given that the mass of the box is 15 kg. and the tension of the rope is 65N.

Just a quick question which i don't seem to get the right answer for. "A parent holds a small child in a swing so that the angle of the swing support is at 20 degrees to the vertical.The child's weight is 200N and the swing seat weighs 50N.What horizontal force must the parent apply" I...

A 1.00-kg object is attached to a horizontal spring. The spring is initially stretched by 0.100 m, and the object is released from rest there. It proceeds to move without friction. The next time the speed of the object is zero is 0.500 s later. What is the maximum speed of the object? I...

I'm not sure where this should go - I didn't see any LaTeX-related forum. Is there a way to create a horizontal rule that doesn't take up the entire width of the page? Thanks, Sam

I've been trying to solve the following statics problem dealing with suspension bridges: Let d1=span length from tower to shore, let d2=mid-bridge span length (tower to tower). The main cable makes an angle of 24 degrees below horizontal to the top of the support tower on the d2 side and 30...

Hi! This is the first question on my homework, so it's suppost to be the easiest, but I'm not sure how to tackle it. It's a Bernoulli's principle problem. Here it is: A horizontal pipe 11.6 cm in diameter has a smooth reduction to a pipe 4.72 cm in diameter. If the pressure of the water...

A ball is attached to a horizontal cord of length L whose other end is fixed. a. If the ball is released what will be its speed at the lowest point of its path? (1/2)mv^2 = mgr, or v^2 = 2gr, v = sqrt(2gr)? b. A peg is located a distance h directly below the point of attachment of the...

I been having trouble lately with my phyiscs HW probs. Here is only that ti'm confused on: Three wires are connected to form a vertical H. The cross piece, mass 0.050 kg and length 0.10m , can slide up and down the vertical wires without friction. The device is placed in a horizontal field...

I have a problem with an answer that I don't know how to arrive at. There is a 35 kg crate on a horizontal floor that a person is pushing with a 110 N force. The coefficient of static friction is 0.37. What is the maximum value f of s, max for which the crate will not move? I thought...

so i got a block with mass=m traveling on an oiled surface. the block suffers a viscous resistance given: F(v)= -cv^{3/2} the initial speed of the block is v_{o} at x=0, i have to show that the block cannot travel farther than 2mv_{o}^{1/2} /c so far i have; ma=-cv^{3/2} m...

A moving 8.07 kg block collides with a horizonal spring whose spring constant is 372 N/m. The block compresses the spring a maximum distance of 6.87 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.752. (a) How much work is done by...

A 26.5 kg chandelier hangs from a ceiling on a vertical 4.11 m long wire. What horizontal force would be necessary to displace its position 0.100 m to one side? I know that the tension on the wire would be 260 N but I still can't figure out the force need to displace it .100

OK, three blocks on a fricionless horizontal surface are in contact on each other, a force is applied to block 1, m1, m2, m3, respectively. And m1=m2=m3. how come the force of contact that block one exerts on block is F(m2+m3) / (m1+m2+m3) instead of just F*m2/(m1+m2+m3). ( I know that a is...

f(x)=(9x^2-36)/(x^2-9) I forgot how to get the hotizontal asymptote. Is it f(x)=0? When I do that, there is no way to solve it Also, how do I find the intervals for when f is increasing? I'm not asking for the answer, but the equation, I totally forgot thanks

Can anyone help me with these 2 problems.. I have been stuck on them Thanks! --------- A car travels 1.14km in the x- direction, then turns left 74.1 degrees to the original direction and travels an additional distance of 3.18km. Calculate the x component of the car's net...

A small steel ball bearing with a mass of 12.0g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.41m. Calculate the horizontal distance the ball would travel if the same spring were aimed 32 degrees for the horizontal...

Figure 1 shows a mass m in equilibrium between two stretched helical springs on a smooth horizontal surface. k_1 and k_2 are the force constants of the springs and e_1 , e_2 are their respective equilibrium extensions. The mass m is displaced X to one side ( X is smaller than e_1 and e_2 )...

[FONT=Comic Sans MS]We've installed a 'zip line' and are trying to figure the maximum load it can safely carry. To date, it has handled, without complaint, 210 lbs. This is fine except over time an overload will obviously weaken the cable - we don't want to do that! The line is a 3/8th...

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 physics book slides off a horizontal table top with a speed of 1.60m/s . It strikes the floor after a time of 0.440s . Ignore air resistance. the following are given: v(0)=1.60 t= 0.440s ok this is the question Find the height of the table top above the floor. Take free fall...

A small steel ball bearing with a mass of 11.0 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.37 m. Calculate the horizontal distance the ball would travel if the same spring were aimed 30.0 deg from the horizontal...

i'm having trouble with this problem, so i want to share it with you guys so some of you can briefly describe what is it asking for and how to solve using what fomula... the question is A ball is fired from the ground with an initial speed of 1.70 x 10^3 m/s (which is approximately five times...

Well I'm going through an introductory calculus book and right now I'm on the section of horizontal asymptotes. Currently I'm stubbed on this: y = (x^2 - 1) / (x^2 + 1) I take the limit of the function as x increases or decreases without bound and come up with y = 1 being the horizontal...

A block of mass 8.0 kg is on the verge of sliding down a 450 incline. What is the magnitude of the horizontal force F, if the coefficient of static friction between the block and the incline is 0.35? I'm really stuck...appreciate any help. Thanks!

I'm having trouble with these two problems. We haven't covered this in class yet, but I have to do them for my lab tomorrow. 1. A package is dropped from a passing plane(moving in the horizontal direction) and produces a projectile motion as it is falling to the ground. If it takes the...

The grade of a hill is a slope and is stated as a percent. What would the horizontal run be for a hill with a vertical rise of 800 feet and a grade of 8%? :confused: