Include a constant counter
clockwise moment of 40 lb.ft
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Include a constant counter
clockwise moment of 40 lb.ft
A slender 9-lb rod can rotate in...
A slender 9 lb rod can rotate in a vertical plane about a pivot at B. A spring of constant k-30 lb/ft and of unstretched length 6 in. is attached to the rod as shown. The rod is released from rest in...
A slender 9 lb rod can rotate in a vertical plane about a pivot at B. A spring of constant k-30 lb/ft and of unstretched length 6 in. is attached to the rod as shown. The rod is released from rest in the position shown. 1) Determine its angular velocity after the rod has rotated through 45.(1 point) 2) Determine the reaction force at pivot point B after the rod rotated through 45. (1 point) 24 in 5 in. 4...
CLASS ID#: (3) GIVEN: (35 PTS) A slender 9-Ib rod AC can rotate in a vertical...
CLASS ID#: (3) GIVEN: (35 PTS) A slender 9-Ib rod AC can rotate in a vertical plane about a pivot at B. Attached to the rod at C is a spring with a stiffness of k=30 lb/ft and an unstretched length 6 inches. The rod is released from rest in the position shown. FIND: (A) (-10 Pts) The ANGULAR VELOCITY (c) of the rod AC after it has rotated through 90° (B) (-10 pts) The corresponding REACTION at the pivot...
The slender uniform bar with a weight of 9 lb can rotate in a vertical plane...
The slender uniform bar with a weight of 9 lb can rotate in a
vertical plane with respect to a bolt B. A spring of constant k =
40 lb / ft and an undeformed length of 5 in is connected to the bar
as shown . If the bar is released from rest in the position shown,
determine after rotating 90 °:
A) The initial energy of the spring:
B) Final spring energy:
C) The velocity of the G...
Sample Problem 6. The 30 kg slender rod is released from rest when θ-00 (when rod OA is in the horizontal position). The spring is unstretched at θ-00. A constant clockwise moment of 10 N-m is applie...
Sample Problem 6. The 30 kg slender rod is released from rest when θ-00 (when rod OA is in the horizontal position). The spring is unstretched at θ-00. A constant clockwise moment of 10 N-m is applied to the rod. A force, P, of 20 N is applied and is always perpendicular to the rod. Determine the angular velocity of the rod when θ- 750. (Use the work-energy or conservation of energy method). 2 m 10 N-mm k80 N/m 1.5...
Problem 9 (15 points) A 20-lb slender rod AB is 5 ft long and is pivoted about a point O which is...
Problem 9 (15 points) A 20-lb slender rod AB is 5 ft long and is pivoted about a point O which is 1 ft from end B. The other end is pressed against a spring of constant k-400 lbin until the spring is compressed 2 in, and the rod is in a horizontal position. If the rod is released from this position, determine its angular velocity and the reaction at the pivot O as the rod passes through a thirty...
A 24 lb uniform slender rod AB of length L= 36 in is fixed to a...
A 24 lb uniform slender rod AB of length L= 36 in is fixed to a
12 lb uniform disk of radius, R= 12 in , and both are pinned at B
as shown. A belt is attached to the rim of the disk and then to a
spring with spring constant, k= 40 lb/in which holds the rod/disk
at rest in the equilibrium position shown.
natural period is 0.446 s
If end A is displaced a distance of 0.9...
A rod of mass M and length 2L is free to rotate in a vertical plane...
A rod of mass M and length 2L is free to rotate in a vertical plane about an axis through O, as shown in the figure. The axis is normal to the plane of the paper. Three mosses M, M, and 2M are attached to the rod as shown. With the rod in a horizontal position, the system is released from rest. (a) Find the net torque on the rod about the axis of rotation immediately after the system is...
A particle of mass m is attached to one end of a light slender rod which...
A particle of mass m is attached to one end of a light slender rod which pivots about a horizontal axis through point O. The spring constant k-200 N/m and the distance b-200 mm. If the system is released from rest in the horizontal position shown where the spring is unstretched, the bar is observed to deflect a maximum of 30° clockwise. Determine (a) the particle mass m and (b) the particle speed v after a displacement of 15° from...
The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine...
The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine the initial angular acceleration a of the bar when it is released from rest in a position where the bar has been rotated clockwise 33° from the position shown. Neglect any sag of the spring, whose mass is negligible. The angular acceleration is positive if counterclockwise and negative if clockwise. The mass m of the bar is 18 kg, the length / is 305...
13.C1 A 12-lb collar is attached to a spring anchored at point C and can slide...
13.C1 A 12-lb collar is attached to a spring anchored at point C and can slide on a frictionless rod forming an angle of 30° with the vertical. The spring is of constant k and is unstretched when the collar is at A. Knowing that the collar is released from rest at A, use computational software to determine the velocity of the collar at point B for values of k from 0.1 to 2.0 lb/in 20 in. 20 in. 30...
A slender 9 lb rod can rotate in a vertical plane about a pivot at B. A spring of constant k-30 lb/ft and of unstretched length 6 in. is attached to the rod as shown. The rod is released from rest in the position shown. 1) Determine its angular velocity after the rod has rotated through 45.(1 point) 2) Determine the reaction force at pivot point B after the rod rotated through 45. (1 point) 24 in 5 in. 4...
CLASS ID#: (3) GIVEN: (35 PTS) A slender 9-Ib rod AC can rotate in a vertical plane about a pivot at B. Attached to the rod at C is a spring with a stiffness of k=30 lb/ft and an unstretched length 6 inches. The rod is released from rest in the position shown. FIND: (A) (-10 Pts) The ANGULAR VELOCITY (c) of the rod AC after it has rotated through 90° (B) (-10 pts) The corresponding REACTION at the pivot...
The slender uniform bar with a weight of 9 lb can rotate in a
vertical plane with respect to a bolt B. A spring of constant k =
40 lb / ft and an undeformed length of 5 in is connected to the bar
as shown . If the bar is released from rest in the position shown,
determine after rotating 90 °:
A) The initial energy of the spring:
B) Final spring energy:
C) The velocity of the G...
Sample Problem 6. The 30 kg slender rod is released from rest when θ-00 (when rod OA is in the horizontal position). The spring is unstretched at θ-00. A constant clockwise moment of 10 N-m is applied to the rod. A force, P, of 20 N is applied and is always perpendicular to the rod. Determine the angular velocity of the rod when θ- 750. (Use the work-energy or conservation of energy method). 2 m 10 N-mm k80 N/m 1.5...
Problem 9 (15 points) A 20-lb slender rod AB is 5 ft long and is pivoted about a point O which is 1 ft from end B. The other end is pressed against a spring of constant k-400 lbin until the spring is compressed 2 in, and the rod is in a horizontal position. If the rod is released from this position, determine its angular velocity and the reaction at the pivot O as the rod passes through a thirty...
A 24 lb uniform slender rod AB of length L= 36 in is fixed to a
12 lb uniform disk of radius, R= 12 in , and both are pinned at B
as shown. A belt is attached to the rim of the disk and then to a
spring with spring constant, k= 40 lb/in which holds the rod/disk
at rest in the equilibrium position shown.
natural period is 0.446 s
If end A is displaced a distance of 0.9...
A rod of mass M and length 2L is free to rotate in a vertical plane about an axis through O, as shown in the figure. The axis is normal to the plane of the paper. Three mosses M, M, and 2M are attached to the rod as shown. With the rod in a horizontal position, the system is released from rest. (a) Find the net torque on the rod about the axis of rotation immediately after the system is...
A particle of mass m is attached to one end of a light slender rod which pivots about a horizontal axis through point O. The spring constant k-200 N/m and the distance b-200 mm. If the system is released from rest in the horizontal position shown where the spring is unstretched, the bar is observed to deflect a maximum of 30° clockwise. Determine (a) the particle mass m and (b) the particle speed v after a displacement of 15° from...
The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine the initial angular acceleration a of the bar when it is released from rest in a position where the bar has been rotated clockwise 33° from the position shown. Neglect any sag of the spring, whose mass is negligible. The angular acceleration is positive if counterclockwise and negative if clockwise. The mass m of the bar is 18 kg, the length / is 305...
13.C1 A 12-lb collar is attached to a spring anchored at point C and can slide on a frictionless rod forming an angle of 30° with the vertical. The spring is of constant k and is unstretched when the collar is at A. Knowing that the collar is released from rest at A, use computational software to determine the velocity of the collar at point B for values of k from 0.1 to 2.0 lb/in 20 in. 20 in. 30...
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