Solution of Problem 14.41
Let n be a unit vector in the direction of the spring, , the usual unit vectors along the horizontal and vertical
directions, n = cos +sin ( = 30 ), and let G be the center of mass of the system (it lies along the line coinciding
Engr 214 Assignment 7 Solutions
13.13) If the crane is brought to a sudden stop, bucket B swings on an arc with center A and radius
R = 10 m. The speed at any time is |R| where is the angle between the vertical line through A
and AB. The only forces on B
Engr 214 Assignment 3 Solutions
11.97) The coordinates (x, y ) of a particle of water satisfy the equations: x = 0, y = g . Integration
gives (as shown in the text) x = x0 + vx0 t, y = y0 + vy0 t gt2 /2. For this problem we are given
y0 = 80m, vy0 = 0 so
Engr 214 Homework Assignments
Due 01/24/03: Beer and Johnson Probs 11.5, 11.15, 11.20, 11.25
Due 01/31/03: Beer and Johnson Probs 11.39, 11.45, 11.53, 11.59
Due 02/07/03: Beer and Johnson Probs 11.97, 11.110, 11.143, 11.161
Due 02/14/03: Beer and Johnson