1. A uniform slender bar AB of mass m is suspended from two wires as shown in Figure 1.

a. If the wire 2 breaks, determine at that instant

i. the angular acceleration of the bar

ii. the acceleration of point A

iii. the acceleration of point B.

b. State all the assumption(s) needed to be made to solve this question.

c. Describe the type or category of this question in terms of either particle/rigid body

and kinematic/kinetic or a combination of more than one (1) category.

d. State all possible method(s) that could be used to solve this question. If there is more

than one (1) method, provide the solution(s) for all possible methods.

Figure 1

2. As shown in Figure 2, rod AB moves vertically at C while end A moves to the right with a

constant velocity vA.

a. State all the assumption(s) needed to be made to solve this question.

b. Derive expressions for the horizontal and vertical components of the velocity of

point B in term of vA, b, xA and L.

c. Given that the vA = 0.8m/s, = 300, L = 0.5m and M = 0.3m, determine the angular

velocity of the rod and the velocity of point B.

d. Describe the type or category of this question in terms of either particle/rigid body

and kinematic/kinetic or a combination of more than one (1) category.

e. State all the possible method(s) that could be used to solve this question. If there is

more than one (1) method, provide the solution(s) for all possible methods.

2. As shown in Figure 2, rod AB moves vertically at C while end A moves to the right with a

constant velocity vA.

a. State all the assumption(s) needed to be made to solve this question.

b. Derive expressions for the horizontal and vertical components of the velocity of

point B in term of vA, b, xA and L.

c. Given that the vA = 0.8m/s, = 300, L = 0.5m and M = 0.3m, determine the angular

velocity of the rod and the velocity of point B.

d. Describe the type or category of this question in terms of either particle/rigid body

and kinematic/kinetic or a combination of more than one (1) category.

e. State all the possible method(s) that could be used to solve this question. If there is

more than one (1) method, provide the solution(s) for all possible methods.

Figure

a. If the wire 2 breaks, determine at that instant

i. the angular acceleration of the bar

ii. the acceleration of point A

iii. the acceleration of point B.

b. State all the assumption(s) needed to be made to solve this question.

c. Describe the type or category of this question in terms of either particle/rigid body

and kinematic/kinetic or a combination of more than one (1) category.

d. State all possible method(s) that could be used to solve this question. If there is more

than one (1) method, provide the solution(s) for all possible methods.

Figure 1

2. As shown in Figure 2, rod AB moves vertically at C while end A moves to the right with a

constant velocity vA.

a. State all the assumption(s) needed to be made to solve this question.

b. Derive expressions for the horizontal and vertical components of the velocity of

point B in term of vA, b, xA and L.

c. Given that the vA = 0.8m/s, = 300, L = 0.5m and M = 0.3m, determine the angular

velocity of the rod and the velocity of point B.

d. Describe the type or category of this question in terms of either particle/rigid body

and kinematic/kinetic or a combination of more than one (1) category.

e. State all the possible method(s) that could be used to solve this question. If there is

more than one (1) method, provide the solution(s) for all possible methods.

2. As shown in Figure 2, rod AB moves vertically at C while end A moves to the right with a

constant velocity vA.

a. State all the assumption(s) needed to be made to solve this question.

b. Derive expressions for the horizontal and vertical components of the velocity of

point B in term of vA, b, xA and L.

c. Given that the vA = 0.8m/s, = 300, L = 0.5m and M = 0.3m, determine the angular

velocity of the rod and the velocity of point B.

d. Describe the type or category of this question in terms of either particle/rigid body

and kinematic/kinetic or a combination of more than one (1) category.

e. State all the possible method(s) that could be used to solve this question. If there is

more than one (1) method, provide the solution(s) for all possible methods.

Figure

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