Chapter 2, Problem 2/183 The distance y = 2.7 m. Find the upward velocity of A...
Neglect the diameters of the small pulleys and establish the relationship between the velocity of A and the velocity of B for a given value of y. If b-0.90 m, y downward, what is the velocity of B (positive if downward, negative if upward) 0.62 m, and VA-2.25 m/s Answer: VE m/s The number of significant digits is set to 3; the tolerance is +/-2%
Chapter 2, Problem 2/180 The velocity of A is 1.5 m/s downward, the velocity of B is 3.2 m/s upward, and the velocity of D is 3.3 m/s downward. Find the velocity of C. The velocity of C is positive if downward, negative if upward. D A с B Answer: Vc = m/s the tolerance is +/-2%
Chapter 4, Problem 4/067 Determine the magnitude of the pin force at A 2.7 2.7 A 2.0' 730 lb D Answer: A lb the tolerance is +/-2% Open Show Work Click if you would like to Show Work for this question: Chapter 4, Problem 4/067 Determine the magnitude of the pin force at A 2.7 2.7 A 2.0' 730 lb D Answer: A lb the tolerance is +/-2% Open Show Work Click if you would like to Show Work for...
Chapter 2, Problem 2/182 The small sliders A and B are connected by the rigid slender rod. If the velocity of slider B is 2.73 m/s to the right and is constant over a certain interval of time, determine the speed of slider A when the system is in the position shown. R 55 2.28R UR B Answer: VA = m/s the tolerance is +/-2% Click if you would like to show Work for this question: Open Show Work LINK...
Chapter 06, Practice Problem 6.01 Determine the vorticity field for the following velocity vector: y k the tolerance is +/-290 Click if you would like to Show Work for this question: Open Show Work
Chapter 2, Problem 2/174 Determine the velocity of cart A if cylinder B has a downward velocity of 2.6 ft/sec at the instant illustrated. The two pulleys at C are pivoted independently. The velocity of A is positive if down the slope, negative if up the slope. UB B Answer: VA = ft/sec the tolerance is +/-2%
Chapter 2, Problem 2/133 The velocity and acceleration of a particle are given for a certain instant by v = (3.2i - 6.2j + 0.9k) m/s and a = (5.6i - 3.6j - 8.0k) m/s2. Determine the angle O between v and a, v, and the radius of curvature p in the osculating plane. Answers: Jm/s2 p= = - m Click if you would like to Show Work for this question: Open Show Work Chapter 2, Reserve Problem 2/073 The...
PRINTER VERSION BACK NEXT Chapter 2, Problem 2/204 The rod of the fixed hydraulic cylinder is moving to the left with a constant speed VA = 38 mm/s. Determine the corresponding velocity Vg of slider B when SA = 390 mm. The length of the cord is 1660 mm, and the effects of the radius of the small pulley at A may be neglected. The velocity vg is positive if up. SA 245 mm Answer: Vg = mm/s the tolerance...
Chapter 2, Problem 2/149 Car A rounds a curve of 139-m radius at a constant speed of 51 km/h. At the instant represented, car B is moving at 86 km/h but is slowing down at the rate of 3.9 m/s2. Determine the velocity and acceleration of car A as observed from car B. + B 139 m Answer: VA/B = + ) m/s : a A/B = + j) m/s2 Click if you would like to Show Work for this...
Chapter 18, Problem 09 Two spherical objects are separated by a distance of 1.55 x 103 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object experiences an electrostatic force that has a magnitude of 4.69 10-21 N. How many electrons did it take to produce the charge on one of the objects? Number Units...