Homework Answers
A small crane supports a mass of 10 kg as shown above. The crane boom is...
A small crane supports a mass of 10 kg as shown above. The crane boom is 3 m long, has a uniformly distributed mass of 5 kg, and is hinged to the ground at its base, and it is attached to the ground behind it with a rope of tension T. What is the tension T (in Newtons) such that this crane is in static equilibrium? What is the magnitude of the force that the ground exerts on the crane...
2. [1pt] A crane of mass M has a wheelbase, E, and its centre of mass...
2. [1pt] A crane of mass M has a wheelbase, E, and its centre of mass midway between the wheels (the mass of the boom is negligible). The boom has length L and makes an angle 0 with the horizontal. The crane is in contact with the ground only at its front and rear tires. The diagram shows the crane, supporting a mass m in front. We will be considering two aspects: (a) the force of the rear wheels on...
A bucket crane consists of a uniform boom of mass M - 201 kg and length...
A bucket crane consists of a uniform boom of mass M - 201 kg and length L- 59.09 ft that pivots at a point on the bed of a fixed truck. The truck supports an elevated bucket with a worker inside at the other end of the boom, as shown in the figure. The bucket and the worker together can bc modclcd as a point mass of wcight 195 Ib locatcd at the end point of the boom. Supposc that...
A bucket crane consists of a uniform boom of mass M- 205 kg and length L...
A bucket crane consists of a uniform boom of mass M- 205 kg and length L 59.73 ft that pivots at a point on the bed of a fixed truck. The boom supports an elevated bucket with a worker inside, as shown in the figure. The bucket and the worker together can be modeled as a point mass of weight W 195 lb, located at the end point of the boom. Suppose that when the boom makes an angle of...
A crane is made from a uniform rigid boom of length L = 30m and weight...
A crane is made from a uniform rigid boom of length L = 30m and weight w = 400N. The boom is sup- ported by a frictionless hinge at its lower end. Its upper end is attached to a support cable which is fas- tened behind the boom at the same horizontal level as the hinge. Adjusting the length of the support / cable adjusts the angle of the boom. In a particu- 7/TTI IN lar application, the crane is...
A mass M=171 kg is suspended from the end of a uniform boom as shown. The...
A mass M=171 kg is suspended from the end of a uniform boom as shown. The boom (mass=76.0 kg, length=2.40 m) is at an angle =56.0 deg from the vertical, and is supported at its mid-point by a horizontal cable and by a pivot at its base. Calculate the tension in the horizontal cable. S M 2484.9 N Submit Answer Incorrect. Tries 3/20 Previous Tries
The boom shown in the figure has a length of 4 m. and weighs 300 N....
The boom shown in the figure has a length of 4 m. and weighs 300 N. It is used to lift a weight of 400 N. If the boom is inclined at 53 degrees to the horizontal, calculate the tension T in the tie which is linked to the boom at a distance of 3 m from the ground.
A uniform rod with a mass of m = 1.73 kg and a length of l...
A uniform rod with a mass of m = 1.73 kg and a length of l = 2.44 m is attached to a horizontal surface with a hinge. The rod can rotate around the hinge without friction. (See figure.) Initially the rod is held at rest at an angle of 0 = 70.3° with respect to the horizontal surface. Then the rod is released. What is the angular speed of the rod, when it lands on the horizontal surface? 7.56rad/s...
19. There is a uniform rod of mass 2.0 kg of length 2.0 m. It has...
19. There is a uniform rod of mass 2.0 kg of length 2.0 m. It has a mass of 2.6 kg at one end. It is attached to the ceiling .40 m from the end with the mass. The string comes in at a 53 degree angle to the rod. a. Calculate the total torque on the rod. b. Determine its direction of rotation c. Explain, but don't calculate, what happens to the angular acceleration as it rotates toward a...
A horizontal spring with stiffness 0.66N/m has a relaxed length of 0.182m. A mass of 0.026kg...
A horizontal spring with stiffness 0.66N/m has a relaxed length of 0.182m. A mass of 0.026kg is attached and you stretch the spring to a total length of 0.384m. The mass is then released from rest. What is the speed of the mass at the moment when the spring returns to its relaxed length of 0.182m? v= Submit Answer Tries 0/99
A small crane supports a mass of 10 kg as shown above. The crane boom is 3 m long, has a uniformly distributed mass of 5 kg, and is hinged to the ground at its base, and it is attached to the ground behind it with a rope of tension T. What is the tension T (in Newtons) such that this crane is in static equilibrium? What is the magnitude of the force that the ground exerts on the crane...
2. [1pt] A crane of mass M has a wheelbase, E, and its centre of mass midway between the wheels (the mass of the boom is negligible). The boom has length L and makes an angle 0 with the horizontal. The crane is in contact with the ground only at its front and rear tires. The diagram shows the crane, supporting a mass m in front. We will be considering two aspects: (a) the force of the rear wheels on...
A bucket crane consists of a uniform boom of mass M - 201 kg and length L- 59.09 ft that pivots at a point on the bed of a fixed truck. The truck supports an elevated bucket with a worker inside at the other end of the boom, as shown in the figure. The bucket and the worker together can bc modclcd as a point mass of wcight 195 Ib locatcd at the end point of the boom. Supposc that...
A bucket crane consists of a uniform boom of mass M- 205 kg and length L 59.73 ft that pivots at a point on the bed of a fixed truck. The boom supports an elevated bucket with a worker inside, as shown in the figure. The bucket and the worker together can be modeled as a point mass of weight W 195 lb, located at the end point of the boom. Suppose that when the boom makes an angle of...
A crane is made from a uniform rigid boom of length L = 30m and weight w = 400N. The boom is sup- ported by a frictionless hinge at its lower end. Its upper end is attached to a support cable which is fas- tened behind the boom at the same horizontal level as the hinge. Adjusting the length of the support / cable adjusts the angle of the boom. In a particu- 7/TTI IN lar application, the crane is...
A mass M=171 kg is suspended from the end of a uniform boom as shown. The boom (mass=76.0 kg, length=2.40 m) is at an angle =56.0 deg from the vertical, and is supported at its mid-point by a horizontal cable and by a pivot at its base. Calculate the tension in the horizontal cable. S M 2484.9 N Submit Answer Incorrect. Tries 3/20 Previous Tries
A uniform rod with a mass of m = 1.73 kg and a length of l = 2.44 m is attached to a horizontal surface with a hinge. The rod can rotate around the hinge without friction. (See figure.) Initially the rod is held at rest at an angle of 0 = 70.3° with respect to the horizontal surface. Then the rod is released. What is the angular speed of the rod, when it lands on the horizontal surface? 7.56rad/s...
19. There is a uniform rod of mass 2.0 kg of length 2.0 m. It has a mass of 2.6 kg at one end. It is attached to the ceiling .40 m from the end with the mass. The string comes in at a 53 degree angle to the rod. a. Calculate the total torque on the rod. b. Determine its direction of rotation c. Explain, but don't calculate, what happens to the angular acceleration as it rotates toward a...
A horizontal spring with stiffness 0.66N/m has a relaxed length of 0.182m. A mass of 0.026kg is attached and you stretch the spring to a total length of 0.384m. The mass is then released from rest. What is the speed of the mass at the moment when the spring returns to its relaxed length of 0.182m? v= Submit Answer Tries 0/99
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