Chapter 2, Problem 2/180 The velocity of A is 1.5 m/s downward, the velocity of B...
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 2/183 The distance y = 2.7 m. Find the upward velocity of A if the downward velocity of B is 2.3 m/s. Neglect the diameters of the pulleys. 9 m A B Answer: VA= m/s the tolerance is +/-2% Click if you would like to show Work for this question: Open Show Work
Chapter 2, Problem 2/181 Collars A and B slide along the fixed right-angle rods and are connected by a cord of length L = 7.5 m. Determine the acceleration of collar B when y = 3.0 m if collar A is given a constant upward velocity VA = 2.08 m/s. The acceleration of B is positive if to the right, negative if to the left. Answer: a = m/s2 the tolerance is +/-2%
Chapter D3, Problem D3/149 The 174-kg lunar lander is descending onto the moon's surface with a velocity of 5.0 m/s when its retro-engine is fired. If the engine produces a thrust T for 3.2 s which varies with the time as shown and then cuts off, calculate the velocity of the lander when t = 3.9 s assuming that it has not yet landed. Gravitational acceleration at the moon's surface is 1.62 m/s2. The velocity is positive if moving downward,...
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%
A Review The roller at A is moving with a velocity of va = 4 m/s and has an acceleration of aA = 2 m/s² when A = 3.7 m (Figure 1) Part A Determine the velocity of block B at this instant. Express your answer to three significant figures and include the appropriate units. Enter positive value if the velocity is upward and negative value if the velocity is downward. I Å R O ? vB = Value Units...
Chapter D3, Problem D3/140 The 188 g unar lander is descending nnta he mnon's surfan with a velac y of 6 m 尿when its re o engine ts fired f the engine producas a thrust T or 3.2昴which varies with the that it has not yet landed, Gravitational acceleration at the moon's surface is 1.62 m/s, The velocity is positive if moving downward, negative If up, me as shown and then cuts o calculate the velocity the lander when t...
If at the instant shown, the velocity of collar C is 2.5 m/s downward, determine: (a) the angular velocity of link AD, (b) the velocity of point B, and (c) the velocity of point D. 1.5 m 1.8 m 30° 2.8 m 1.5 m 1.8 m 30° 2.8 m
Mechanical EngineeringMechanical Engineering? Block C is moving downward with a velocity of 5 m/s^2, which is decreasing at a rate of 1 m/s^2, while block A is moving upward with a velocity of 8 m/s^2, which is decreasing at a rate of 3 m/s^2. Determine the velocity and acceleration of block B at this instant.
1. At a certain instant, cylinder A has a downward velocity of 0.8 m/s and an upward acceleration of 2 m/s. Determine the corresponding velocity and acceleration of cylinder B.