Homework 13
16-311 Introduction to Robotics
Fall-05. Prof. Howie Choset
Due in class Mon. Dec. 7th in class
Please answer the following questions.
Group: Do Lab 10 (70%)
Individual (30%) :
- Show that the cart can achieve full (x, y, theta) degrees of freedom using
Lie Bracket analysis.
- State the constraint vector w1(q)
- State the allowable motion vectors g1(q) and g2(q)
- Compute the Lie Bracket of g1 and g2

- Compute the inverse kinematics for the following system: a mobile robot
with a two link manipulator on board. The location of the mobile base is (x,y),
with an orientation alpha. The two link manipulator is attached such that
the axes of rotation are perpendicular to the page in the Side View image.
The first joint of the two-link manipulator is a height h from the floor.
- Given a desired X, Y, Z, and Omega, determine the x,y position for the
mobile robot, as
well as its orientation alpha and the angles tau1 and tau2.

