ROS Answers: Open Source Q&A Forum - RSS feedhttps://answers.ros.org/questions/Open source question and answer forum written in Python and DjangoenROS Answers is licensed under Creative Commons Attribution 3.0Tue, 27 Aug 2019 08:23:27 -0500Getting different values of acceleration when computed using equation of dynamics and when using kinematic equation.https://answers.ros.org/question/331719/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/I am new to ROS and Gazebo environment.I am trying to simulate application of force on a body on a friction-less surface with value of slip as 1.0.I am giving force of 1 N on the body's center of mass, according to the equation F=m*a the acceleration should be 1 m/s^2 . But on observing the displacement of body in x-direction, the value of acceleration obtained using the formulae S=ut+1/2at^2 is far less then it should be.Is there any parameter i have to set to get the correct value of acceleration.
I have already posted this question on answers.gazebosim.org but could'nt get any answer.
http://answers.gazebosim.org/question/23610/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/Tue, 27 Aug 2019 07:03:14 -0500https://answers.ros.org/question/331719/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/Comment by zaccer for <p>I am new to ROS and Gazebo environment.I am trying to simulate application of force on a body on a friction-less surface with value of slip as 1.0.I am giving force of 1 N on the body's center of mass, according to the equation F=m*a the acceleration should be 1 m/s^2 . But on observing the displacement of body in x-direction, the value of acceleration obtained using the formulae S=ut+1/2at^2 is far less then it should be.Is there any parameter i have to set to get the correct value of acceleration.
I have already posted this question on <a href="http://answers.gazebosim.org">answers.gazebosim.org</a> but could'nt get any answer. </p>
<p><a href="http://answers.gazebosim.org/question/23610/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/">http://answers.gazebosim.org/question...</a></p>
https://answers.ros.org/question/331719/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/?comment=331728#post-id-331728Edited the question as asked.Tue, 27 Aug 2019 08:23:27 -0500https://answers.ros.org/question/331719/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/?comment=331728#post-id-331728Comment by gvdhoorn for <p>I am new to ROS and Gazebo environment.I am trying to simulate application of force on a body on a friction-less surface with value of slip as 1.0.I am giving force of 1 N on the body's center of mass, according to the equation F=m*a the acceleration should be 1 m/s^2 . But on observing the displacement of body in x-direction, the value of acceleration obtained using the formulae S=ut+1/2at^2 is far less then it should be.Is there any parameter i have to set to get the correct value of acceleration.
I have already posted this question on <a href="http://answers.gazebosim.org">answers.gazebosim.org</a> but could'nt get any answer. </p>
<p><a href="http://answers.gazebosim.org/question/23610/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/">http://answers.gazebosim.org/question...</a></p>
https://answers.ros.org/question/331719/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/?comment=331724#post-id-331724> I have already posted this question on answers.gazebosim.org but could'nt get any answer.
in these cases always include a link to your other/previous question, so we can keep things connected.Tue, 27 Aug 2019 07:57:07 -0500https://answers.ros.org/question/331719/getting-different-values-of-acceleration-when-computed-using-equation-of-dynamics-and-when-using-kinematic-equation/?comment=331724#post-id-331724