What is Kinematic equations: Definition and 111 Discussions

Kinematics equations are the constraint equations of a mechanical system such as a robot manipulator that define how input movement at one or more joints specifies the configuration of the device, in order to achieve a task position or end-effector location. Kinematics equations are used to analyze and design articulated systems ranging from four-bar linkages to serial and parallel robots.
Kinematics equations are constraint equations that characterize the geometric configuration of an articulated mechanical system. Therefore, these equations assume the links are rigid and the joints provide pure rotation or translation. Constraint equations of this type are known as holonomic constraints in the study of the dynamics of multi-body systems.

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  1. 4

    Using Kinematic equations to describe a falling object

    Homework Statement For this project, we had to build a vehicle that would hold an egg, and drop it a distance of about 40 feet, and making sure the egg wouldn't break. There are various parts to the report part of this project, and I had a question about the first part. Basically, one part...
  2. A

    Using force equations and kinematic equations

    Homework Statement A 1.0kg wood block is launched up a wooden ramp that is inclined at a 38 degree angle. The block's initial speed is 14 m/s. (Use uk = .20 for the coefficient of kinetic friction for wood on wood.) a.) What vertical height does the block reach above its starting point...
  3. P

    Help with kinematic equations.

    hello, i'm having trouble with kinematic equations. i feel that i understand them, but when i get to a problem, I'm so confused. i can figure out what i have and what i don't have, but it's choosing the correct formula that is my main problem. how do i know when to solve for what...
  4. ~christina~

    Kinematic Equations: Can They be Used with 0 Acceleration?

    Can they be used if the acceleration is = to zero?? I know that they can only be used if the acceleration is constant but is zero considered a constant?? Thanks =):confused:
  5. L

    How Is Average Force Calculated for a Rebounding Ball?

    Homework Statement After falling from rest a a height of 30 m, a 0.50 kg ball rebounds upward, reaching a height of 20 m. If the contact between ball and ground lasted 2.0 ms, what average force was exerted on the ball? Homework Equations The Attempt at a Solution I figured I had to...
  6. B

    Rotational kinematic equations help

    A wheel 60.0 cm in diameter accelerates uniformly from 245 rpm to 395 rpm in 7.5 s. How far will a point on the edge of the wheel have traveled in this time? I keep getting 125.66, I don't really understand what forumal to use.
  7. H

    Kinematic Equations - Manipulating them.

    Hi, I'm new to this forum. I need major help on my homework. So the kinematic equation, Vf² = Vi² + 2ad I need to figure out how to manipulate it so I can find Vf(final velocity), Vi(initial velocity), a(acceleration), and d(displacement). I figured to find Vf, you just square root it...
  8. K

    Kinematic Equations for Acceleration: Solving Problems with Changing Velocities

    Im a 1st year physics student in the 11th grade. I haven't had much trouble with the assignment, but for some reason i cannot get the correct solution on this problem. A certain car is capable of accelerating at a rate of 0.57 m/s2. How long does it take for this car to go from a speed of 53...
  9. O

    Finding the acceleration of an object w/ kinematic equations

    This is a problem that appeared quite simple but is for some reason incorrect. I am not quite sure where I made my mistake so I spelled out my thought process below: Question: "Suppose that a cart was released from rest at a position of 3.5 cm down the ramp and continued to travel down the...
  10. B

    Kinematic Equations: Relationships & Slopes

    I'm a little confuse about these. velocity as a function of time, displacement as a function of time and velocity as a function of displacement. I know how to use this formulas, but in my lab there is a question that I am stuck on. How are this kinematic equations related to each other? and...
  11. T

    Kinematic Equations: V_0, V, t, a, x

    Since a good amount of the posts refer to problems involving kinematics I figured this may be helpful V_0 = Inital Velocity V = Final Velocity t= time a= acceleration x= distance x=V_0t+\frac{1}{2}at^2 V=V_0+at V^2=V_0^2+2ax x= \frac{1}{2}(V_0+V)*t
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