Inclined Definition and 1000 Threads

Homework Statement A 20-kg package is at rest on an incline when a force P is applied to it. Determine the magnitude of P if 10s is required for the package to travel 5m up the incline. The static and kinetic coefficients of friction between the package and the incline are both equal to 0.3...

Homework Statement A 2.0 kg block rests on a frictionless wedge that has a 60 deg incline and an acceleration \vec{a} to the right such that the mass remains stationary relative to the wedge. a) Draw the free-body diagram of the block and use it to determine the magnitude of the...

Homework Statement In anticipation of a long 7° upgrade, a bus driver accelerates at a constant rate of 3ft/s2 while still on a level section of the highway. Knowing that the speed of the bus is 60mi/h as it begins to climb the grade and that the driver does not change the setting of his...

I'm having problems of calculating the acceleration and velocity of a cart traveling down an inclined plane. I also need help calculating Sin theta. I've used 2 formulas to try calculating the acceleration and i get different answers. the first formula is a=2s/t2(squared), the 2nd formula was...

Homework Statement A block is given an initial speed of 3.0m/s up a 22 degree plane. a.) How far up the plane will it go? b.) How much time elapses before it returns to the starting point? no friction btw Homework Equations Assuming that...

Homework Statement So I have this standard problem of a cylinder rolling down an inclined plane, however, this time the plane itself is free to slide on the ground. I need to find the acceleration of that cylinder relative to the plane. 2. The attempt at a solution...

Homework Statement Figure 5-60 shows a box of dirty money (mass m1 = 2.7 kg) on a frictionless plane inclined at angle θ1 = 28°. The box is connected via a cord of negligible mass to a box of laundered money (mass m2 = 2.4 kg) on a frictionless plane inclined at angle θ2 = 64°. The pulley is...

Homework Statement I have a beam on an incline at angle θ. It is uniformly loaded with "W", which represents the self-weight of the beam. Reactions occur at each end. The beam is simply supported. The scenario is drawn out below: The Attempt at a Solution This problem seems so...

I just have a quick question. I know that at least some amount of friction is required in order for a ball to roll down an inclined plane and not just slide. My question is about the work done by friction in this situation. Is all of this energy converted to rotational kinetic energy or is there...

Homework Statement (Figure attached to post) A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k, compressing the spring a distance x. After it is released, the box slides up a frictionless incline as shown in Fig. 7.5 and eventually stops. If we...

Homework Statement A Glass of water is freely sliding down an inclined plane. The water surface has settled down after some initial disturbances. Which of the three cases is possible for the shape of the water surface: 1) It will remain parallel to the incline 2) The water surface will rise...

First time post, so sorry if this is in the wrong section. I've been working my way through Morris Kline's "Calculus" this summer to get ready for college next year, and I have hit a bump on a problem involving an inclined plane. In this problem the question is as follows: "An object slides down...

Homework Statement An Object with a mass of 10.0kg is at rest at the top of a frictionless inclined plane of length 8.00m and an angle of inclination 30.0 with the horizontal. The object is released from this position and it stops at a distance d from the bottom of the inclined plane along a...

Hello. Can someone help me with this problem please? An inclined plane of angle theta = 20.0 has a spring of force constant k=500 N/M fastened securely at the bottom so that the spring is parallel to the surface as shown in figure P7.63. A block of mass m = 2.50 kg is placed on the plane at a...

Homework Statement Assume you are on a planet simillar to Earth where the acceleration due to gravity is 10 m/s2. A block of mass 15 kg lies on an incline plane. The height of the incline in 9m and the width is 12m. The coefficient of kinetic friction is .5. The magnitude of the force...

During revision for an exam I have tomorrow I came across a question that left me confused, and I wasn't entirely satisfied with my teacher's explanation today. I'm worried something of the sort may come up in the exam and I won't be entirely certain how to deal with it. We have a plane...

Homework Statement So rigid body (ring, cylinder, sphere), who's radius of gyration is known, rolls down an inclined plane without slipping. Find velocity as a function of height. m - mass of the body. y0 - initial height, g - gravitational acceleration, v - speed. I - moment of inertia, K -...

Homework Statement A particle with mass m slides down from rest on a smooth plane inclined at an angle of theta with the horizontal . The particle, besides subjected to gravity experiences a resistive force of magnitude mkv ,with v as its velocity at time t and k as a positive constant. Show...

acceleration of the inclined plane ? Homework Statement A block of mass m is placed on an inclined plane. the angle of inclination is θ. now i want to understand in which direction (horizontal) the plane should be accelerated so that the block on it doesn't move. Homework Equations...

The owner of a warehouse ask an engineer to design a ramp which will reduce the force necessary to lift boxes to the top of a 1/2 m step. If there is only room enough for a 4 m ramp, what is the maximum factor by which the lifting force could be reduced? I am not sure how to find the...

Consider the classical physics problem of a cube sitting atop a frictionless inclined plane. Of course, this cube will accelerate down the plane with acceleration dictated by F = mgsin(theta), where theta is the angle between the inclined plane and the horizontal surface. Easy enough. Now...

Homework Statement A hollow cylinder with a mass of 1.2 kilograms and a diameter of .25 m rolls down an inclined plane angled at 35 degrees. What is its translational velocity at the bottom of the incline plane if the distance traveled is 3 meters?Homework Equations v=\sqrt{gh} ? The Attempt...

Homework Statement List 2 major factors result in an efficiency of less than 100% when using an inclined plane to raise a mass Note - this is a grade 11 lab so don't have answers that are too advanced please :DHomework Equations eff = eout/ein x 100% ... = mghf/fd x 100%The Attempt at a...

Homework Statement A block with mass m = 5.00 kg slides down a surface inclined 36.9 to the horizontal. The coefficient of kinetic friction is 0.25. A string attached to the block is wrapped around a flywheel has mass 25.0 kg and moment of inertia 0.500 kgm2 with respect to the axis of...

Homework Statement How do you find the effort force of pulling a cart up a ramp with no friction and you know that the weight of the cart is 7.6734 N? Homework Equations W=F\DeltaXcos\theta Efficiency=(work output / work input) x 100 The Attempt at a Solution My main goal is to...

I can do vertically submerged fluid force problems. One portion of my book says: If a flat surface is immersed so that it makes an angle of 0 \leq \theta \geq \frac{\pi}{2} with the vertical, then the fluid force on the surface is given by: F=\int^b_a \rho h(x)w(x)sec\theta dx Can someone...

I've seen a number of posts on the following question, but don't believe any contain a solution to the following very simple scenario: A sphere of radius r and mass m rolls down a plane inclined at theta degrees. What are its linear and angular velocities at any time t thereafter, assuming it...

Block of mass M between two strings on incline? A block of mass M rests on a frictionless inclined plane of angle θ as shown in the diagram below. Two springs of equal length are connected to the block and to two posts as shown. The separation between the posts is equal to the sum of relaxed...

Homework Statement How is angle of incline related to the acceleration of the car moving down it? I know how to find both the velocity and acceleration of a car moving down a track using the suvat equations. I don't understand the relationship between angle of incline, velocity and...

Homework Statement A box weighing 20 kg is on an inclined plane with an angle of 30\circ.The coefficient of friction is 0.3. What is the acceleration of the box?Homework Equations Newton's Second law ( I think? ) g= 10 m/s2 The Attempt at a Solution\sumy = 0 NF - Wysin30\circ = 0 NF...

Homework Statement Block 1 of mass m1=2.0kg and block 2 of mass m2=3.0kg are connected by a string of negligible mass and are initially held in place. Block 2 is on a frictionless surface tilted at theta = 30 degrees. The coefficient of kinetic friction between block 1 and the horizontal...

Homework Statement An inclined plane at 30.0° is 4.9 m long. A book which has a coefficient of kinetic friction with the inclined plane of 0.16 is placed at the top and immediately begins to slide. How long will it take for the book to reach the bottom of the incline? Homework Equations...

I'm working on a problem in which a block sits on an inclined plane of angle @ above the horizontal. Assuming there is no friction, the block will slide down the plane with a force of mg*sin(@). The trouble I'm having is figuring out the horizontal and vertical components of that force...

Homework Statement a constant force Fa of magnitude 85.0 N is applied to a 4.0 kg shoe box at angle φ = 53.0°, causing the box to move up a frictionless ramp at constant speed. How much work is done on the box by Fa when the box has moved through vertical distance h = 0.45 m? heres the...

Homework Statement We have an inclined cylinder, something like a funnel, which rotates around its symmetrical axis. A mass (m) resides on the wall of this cylinder and rotates with the cylinder. Now the angular velocity of the cylinder increases. Whether the Newton laws (or else) can...

So, my physics teacher has made this VERY confusing. We use vectors. But for some reason I keep wanting to think the resultant vector is the ultimate vector for magnitude and direction of force,speed acceleration w/e. But for some reason I'm not seeing that Normal force is the force that...

Homework Statement A box is sliding up an incline that makes an angle of 15 degrees with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is .180. The initial speed of the box at the bottom of the incline is 1.50 m/s. How far does...

A block of mass m is on a frictionless inclined plane with no initial speed. The net force which equals to the component of the block's weight along the inclined plane, acted through the block's centre of mass, so there is no torque acted on the block, so the block does not rotate and just...

Homework Statement A small sphere is released from rest and after falling a vertical distance h freely under gravity, bounces on a smooth inclined plane ( at an angle theta less than 90 degrees to hotizontal ). Given that there is no energy loss on impact, in what direction will it move...

Homework Statement A 3kg load on an inclined plane of angel 30 degrees is connected by a cord over a frictionless pulley to a second load which has a mass of 2 kg. Find the: a) Acceleration of each load b) tension of each chord Homework Equations none? The Attempt at a...

Homework Statement The included image shows the problem in its entirety. The problem is from a physics review book that I have which also includes the answer, but the explanation is beyond me. I was hoping someone could walk me through the solution. T, the rope tension (constant...

Homework Statement A small sphere is dropped from rest at a height 'h' above a plane inclined at an angle θ to the horizontal ( < 90degrees ). Given that the sphere loses no energy on impact, show that the distance down the plane between this impact and the next is 8hSinθ. Homework...

Homework Statement A solid ball is at the top of a 2 meter inclined plane. Assuming friction is negligible, what is its linear speed (m/s) as it reaches the bottom? Homework Equations PE=mgh KE=.5mv^2 RKE=.5Iw^2 I of ball=.4mr^2 w=v/r The Attempt at a Solution Pretty much what...

1. Homework Statement The diagram shows a 5kg block of lead released from rest at the top of an incline. The block has a speed of 6 m/s when it reaches the bottom. The angle between the slope and the ground is 40° and the slope is 10 m long. a) What is its PE at the top? b) What is its KE at...

Homework Statement The diagram shows a 5kg block of lead released from rest at the top of an incline. The block has a speed of 6 m/s when it reaches the bottom. The angle between the slope and the ground is 40° and the slope is 10 m long. a) What is its PE at the top? b) What is...

Homework Statement Two 2kg blocks are joined by a massless cord and pulley, ignoring friction, determine each block's acceleration using a free body diagram for each. Picture for visual aid: http://img27.imageshack.us/img27/2653/86460048.png or a link...

Homework Statement cubical block of mass m ,edge a,slides down the inclined plane of inclination \varphi with uniform velocity. torque of normal reaction on the block about its centre is? The Attempt at a Solution Torque=mgcos\varphi X a/2 mgcos\varphisin\varphia/2 Book says...

Homework Statement A worker pushes a crate weighing 93 N up an inclined plane. The worker pushes the crate horizontally, parallel to the ground. a. The worker exerts a force of 85 N, how much work does he do? (A: 340 J) b. How much work is done by gravity? (A: -280 J) c. The coefficient...

Homework Statement * This is for my project. The sled is placed at an inclined surface at an angle of theta. The sled is attatched to a rope, which i will be pulling to find out the minimum force to start the sled moving. i would assume that when I am tryin to find the jusssttt jussst...

Homework Statement A 11.0 kg crate is pulled up a rough incline with an initial speed of 1.3 m/s. The pulling force is 121.0 N parallel to the incline, which makes an angle of 12.6◦ with the horizontal. The coefficient of kinetic friction is 0.31 and the crate is pulled a distance of 8.0 m...