Motion analysis Definition and 23 Threads

this is how far i have come with my model, i am trying to first the most simple model, meaning no friction involved and then testing that against an actual stick falling by using tracking software. I am currently stuck as my model still has an acceleration in the y direction that i cannot seem...

If f(x) is the function of the "ground": My first assumption is that in a certain $$\bar{x}$$, $$f''(\bar{x})=0$$, and from that point I will analyse the situation. The object has initial energy $$E_0=\frac{mv^2}{2}+mgf(x),$$ then $$v=\sqrt{\frac{2}{m}}\sqrt{E_0-mgf(x)}.$$ In each point the...

https://www.feynmanlectures.caltech.edu/I_09.html 9-7 "From this figure we see that the horizontal component of the force is related to the complete force in the same manner as the horizontal distance x is to the complete hypotenuse r, because the two triangles are similar. Also, if x is...

From Feynman lectures on physics: https://www.feynmanlectures.caltech.edu/I_08.html Page 8-7 (Ch 8 Motion) “ To be more precise, it is the sum of the velocity at a certain time, let us say the ith time, multiplied by deltat. ##s=\sum_{i} v({t_i})\Delta t##” Now I suppose ##{t_i}## is some time...

Can we apply Newton's laws of motion to the following use case mentioned below? Why is it difficult for Humans to move backwards with Skates? With practice & balance, is it possible to achieve this feat? Humans do can move backwards with their legs.

Hi! I am really stuck on the concept, wouldn't we not have enough variables? I tried equation the equation for the y of the object to the slope of the hill, but I am missing several variables. Any help is greatly appreciated :) thanks!

The first thing I did, was to find the equations for player A (p) and ball's (b) path (for each i and j component I used the equation I wrote in the relevant equations) and then I found the derivative of both equations so I could have the velocity: $$\vec{r}_p(t)=(6t^2+3t)\hat{i}+20\hat{j}...

hi how can i draw velocity - time graph to determine whetere this particle has ever exceeeded the 30 km/h velocity or not ?

Is entering force will be same when a body enter in two box one filled with water and other filled with air. Both boxes have same pressure 7 bar and velocity of body at entering point is 9 m/s

Lets consider some kind of metrics: \begin{equation} ds^2 = dt^2 - \frac{dr^2}{1-\frac{2M}{r}} - r^2(d\theta^2 + \sin^2\theta d\phi^2). \end{equation} here ##r = l/2\pi## is the radial coordinte like in Schwarzschild metrics. As far as I know, this metrics is describe the whormhole. Lets put...

I need help calculating travel time as a function of distance using drag equation: F_drag = crossection area * density * ballistic coefficient * 0.5 * v^2. Not posted in homework cause it's not, and I don't know how to solve integrals so I could not fill solution attempt box

Homework Statement [/B] Find accelerations of these masses and the pulley are weightless. Homework Equations [/B] Sb+Sc=Length of the second rope (L2) The Attempt at a Solution [/B] Just like I did, I placed all variables from datum to the masses. In the second system, I write the...

hey, I just want to know, if I am to send a velocity commands to generate a spiral trajectory, What would be these velocities (angular and linear)?? Thanks in advance

I don't understand the motion of an accelerating wedge and a block. I'd really appreciate if you make me understand the motion in both an inertial and a non inertial reference frame. Here's a figure I have made, a0 is the acceleration on the wedge with respect to an inertial frame, towards right.

I am working on some litigation support tasking and need to illustrate, utilizing stick figures and some basic applied physics, to explain the act of walking down a staircase and how a divergent stair riser may affect the stride of a human descending the stairs...I have seen illustrations in...

Homework Statement [/B] If bar AB has an angular velocity of 6 rad/s, determine the velocity of the slider block C at the instant shown. 2. Homework Equations The Attempt at a Solution vB=vA+wABxrB/A vA=0 vB= -0.8485i+0.8485j So then C relative to B: vC=vB+wBCxrC/B -vCi=...

Mentor note: moved to homework forum later, therefore no template. When doing a rigid body relative motion (accel) problem using vector analysis, how do I know when it's appropriate to substitute sin/cos values vs when to use just the numbers given as the velocity?

Homework Statement A slotted link AC is is driven by the peg P connected to a rotating disk. Point A is fixed. Determine the link's angular velocity, \omega_{ac} and acceleration, \alpha_{ac} when the angular velocity and acceleration are \omega and \alpha , respectively. \omega = 6...

Homework Statement All of this is in the attachment, but here is the question anyways. "Two blocks of masses A, 50 kg and B, 30 kg are connected to a mass*less pulley which is connected to a wall. Determine the velocity of block B after it moves 0.5 m from its original position. Assume no...

I'm hoping someone here an help out; I've gotten rather frustrated trying to do something simple. A colleague asked me to help him put together a simple motion analysis setup (Physics I style) as a lab tool. Standard video rates (30 fps etc) are more than sufficient. What *is* important is...

Homework Statement The attempt at a solution I used the concept of relative motion analysis for velocity: VB = VA + VB/A (4) = (-2) + ω(3) ω = 2 rad/s (CCW) Is this correct?

Homework Statement A golf ball is struck at ground level. The speed of the golf ball as a function of time is shown in the figure below, where t = 0 at the instant the ball is struck. The graph is marked in increments of 0.55 s along the time axis, and vmin = 18.92 m/s and vmax = 32.93 m/s...

Let me start by saying thank you to any responses I receive. I understand the methods for solving this problem but I have concluded that either part or all of my solution is incorrect. After solving for the angular velocity, I differentiated my answer in order to check the angular...