32. mier, used for complete mixing of chemical solutions, is depicted in Main arm M is pinned to ...
PS20.1. A "mixer," used for complete mixing of chemical solutions, is depicted in the figure below. Main arm M is pinned to newtonian reference frame N at point A, and to secondary am S at point B. The i, unit vectors are fixed in N; the m, unit vectors, in M and the s, unit vectors, in S. The main arm has length η. Mixing point C is constrained to move along secondary arm S at distance 2 from B....
Problem 1. (15 points) Recall, the Eulerian angles that we defined in class as shown below. The axes (î, þ, â) are fixed in body frame B and the axes (Î, Ê, Â) are fixed in the inertial reference frame F. The orientation of B with respect to mathF is represented through the angles (0, 0, 4) using a sequence about intermediate z, intermediate y and intermediate z-axis again to obtain body-fixed frame B in the final configuration, from the...
Problem 2 (10 pt.) A homogeneous sphere of mass m and radius b is rolling on an inclined plane with inclination angle ? in the gravitational field g. Follow the steps below to find the velocity V of the center of mass of the sphere as a function of time if the sphere is initially at rest. Bold font represents vectors. There exists a reaction force R at the point of contact between the sphere and the plane. The equations...
g vluelty 1im/s,0,-2m/s), and its mass is 0.5kg? sr=13 m, 5 m,--2 m Consider a rider on a Ferris wheel of radius R that s in the xz plane and is rotating clockwise with angu- lar velocity W. At every instant, then, a person riding or ider of mass m who at a certain instant is passing the (a) At that instant, what is the magnitude and direction of (b) What is the magnitude and direction of the rider's wheel's...
A small Iab scale has a rigid L-shaped frame ABC consisting of a hori arm AB (length b 280 mm) and a vertical arm BC (length c 250 pivoted at point B, as shown in Fig. 2-7a. The pivot is attached to th frame BCD, which stands on a laboratory pointer at C is controlled by a spring (stiffness 750 N/m the attached to a threaded rod. The position of the threaded rod is by turning the knurled nut The...
A mechanical device consists of two circular gears, one of radius 2 centered at (0, -2) and the other radius 1 centered at (0, 1). The gear of radius 2 rotates clockwise at unit angular velocity (1 radian per second), while the gear of radius 1 rotates counterclockwise without slipping at the contact point. The two gears each carry a small peg on their circumference, and these pegs are connected together by an elastic band. Initially, both pegs are at...
Question B4 Figure QB4 shows a spacecraft which is moving through space at a constant velocity. The xyz axes are fixed to the craft. At the instant under consideration, the craft has a constant rotation of 1 radis about the z axis, the solar panels are at an angle of 30° to the z axis and is increasing at the constant rate of radis. (a) Determine the vector expression of the angular acceleration of the right hand panel. (4 marks)...
As shown in Fig. 3, a homogenous disk of mass m = 3.5 kg rotates
at the constant rate ?1 = 15 rad/s with respect to arm ABC, which
is welded to a shaft DCE rotating at the constant rate ?2 = 8.5
rad/s. Determine (a) the angular momentum of the disc about point C
(b) the couple of body representing the dynamic reactions at
supports D and E and (c) the kinetic energy of the system. Both
angular momentum...
Collar C is attached to the rod AB by a double collar and translates along the circular rod as shown in the figure below. The rod AB rotates counterclockwise with constant angular rate 6 of 3 rad/s. Point A on rod AB is pinned to the circular rod. The circular rod has a radius r of 0.5 m. Determine the velocity and acceleration of the collar C when 8 is 45 degrees. Express your final answers in the inertial reference...
A polo ball is hit with a mallet off the edge of a cliff. Its x- and y-coordinates as functions of time are given by x = 18.2t and y = 4.04t − 4.90t2, where x and y are in meters and t is in seconds. (Do not include units in your answer.) (a) Write a vector expression for the ball's position as a function of time (in m), using the unit vectors î and ĵ. (Give the answer in...