a heavy machine is being lifted from the ground up a building using a set of pulleys with rope. the end of the rope moves at 5m/sec and the machine rises at 1 m/sec. the end of the rope is attached to a hoist mounted at the ground.
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a heavy machine is being lifted from the ground up a building using a set of pulleys with rope. the end of the rope moves at 5m/sec and the machine rises at 1 m/sec. the end of the rope is attached to a hoist mounted at the ground.
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- The length of the upper arm of a Watt governor is 400 mm and its inclination to the vertical is 30°.Find the percentage increase in speed, if the balls rise by 20 mm.20 deg. Q3: Explane in which case Fa has a maximum Value & minimum Value in Pulling the car shown in Fig 20A Motor Pulleys crate M OD Problem Statement: One cable runs from a winch motor M, around pulley D, to the ceiling. A second cable runs from the axis of pulley D, around pulleys C, B, and A, to the ceiling. A crate is suspended from the axes of pulleys A and C. The motor winds up its cable at a rate of 50.3 m/s. Assuming the crate stays level, determine: The speed of the crate after 10 seconds: 1.247 m/s The time required for the crate to travel 6.1 meters: 4.918 s Be sure to include units with your answers.
- 5. There are two masses with unequal weight. The masses are tied by a rope and they are connected over two pulleys as shown in Figure 1. When the system is released, heavier mass accelerates downward and lighter accelerates upward. Assume frictionless pulleys, find the theoretical tension of the thread and the theoretical acceleration. Masses are M1= 6.00 kg and M2= 2.00 kg. Two discs are allowed to move on inclined air table with dimensions a= 11cm, b=17cm, c=60cm. (Hint: You can use free body diagram and M1 b Newton' W.B. M2 s second law of a motion equation (F=m.a) to solve tension, g=980cm/s?.)Determine the tension in the string and acceleration of the block A and B weighing 1200 N and 400 N connected by a string as shown in figure Assume pulleys are weightless and frictionless. ANS: T =__________ N, aA = ________ m/s² ap =________m/s² (one decimal place) (absolute value)4. The figure below shows a bulldozer. Notice that the track on the bulldozer (the tread that wraps around the wheels) is kinematically similar to the conveyor belt in the previous problem. D В E Suppose the person operating the bulldozer knows the distance between the two main wheels on the side of the vehicle. She looks out the window and, with the aid of a stopwatch, notices that the track is moving forward from her perspective at a constant speed v. Furthermore, as the bulldozer drives forward, the track does not slide or skid on the ground. In answering the sub-questions below, use the idea contained in Equation (2) and express answers in terms of basis (ê1, ê2). You may utilize results from Problem 3. (a) Using the terminology in (2), what does the quantity v directly represent? (b) Let C be a point on the track in contact with the ground. What is the velocity of point C as observed by a stationary person on the ground watching the bulldozer? Why? (c) Find the velocity of point…
- The cart in the figure is attached to special spring that can stretch and compress equally well. The springis very light. The cart and spring rest on a low-friction horizontal surface. The cart is pulled to position Iand then released. It moves to position V where it then reverses direction again to position I. A)Draw a force diagram forpoint V, cart moving left. B)Draw a force diagram forpoint II, cart moving left.5) a. We then attach the 5 kg and 10 kg cubes to each other with a cable, and we will raise the ramp so it makes a 20° with the ground. As in the picture below, we place the 5 kg cube on the ramp, and hang the 10 kg cube over a pulley so it is free to fall to the ground. The pulley is very light compared to the cubes so it will have a negligible effect on the motion of the connected cubes. The acceleration is 5.42 m/s^2. b. Same scenario as part a, but now the ramp is made of a smooth material, and the 5 kg cube is on wheels. This creates a coefficient of static friction between the 5 kg cube and the ramp of 0.15. What is the acceleration of the connected cubes? Draw a free-body diagram for each cube.Task 6 An industrial trolley of mass 350 kg is used to transport equipment and materials to a workstation within the R and D section. Initially the trolley is at the top of a 15 m high hill, which is inclined at 10º to horizontal as shown and travelling at 6 m/s before rolling down into the station. On reaching the bottom of the hill, brakes are applied to the trolley to slow it down to 0.25 m/s in 4.5 m. Determine: The braking force that slowed the trolley down The time it takes the trolley to slow down The deceleration of the trolley
- This is an example diagram of Atwood’s Machine. This machine works by hanging two masses on a pulley, with each mass being acted upon by gravity. Since the masses are on opposite sides of the pulley, their weights oppose each other, and the net acceleration is less than g. To see this, please draw in all of the relevant forces in the diagram below. Be sure to indicate which direction friction in the pulley is acting. Assume m1 > m2.2. Figure 2 shows a quick return mechanism. The ram at C has a mass of 50kg and is accelerating to the right at 10 m/s². In addition there is a force resisting the motion of the ram of 1500N. Determine the magnitude and direction of the forces: (a) acting between the ram and guide (b) at the pin joint B (c) (d) (e) Find the torque about O. at the pin joint Q. at the slider A. BL 45° 71° 18.5° Figure 2. Quick Return Mechanism OA = 0.075m AQ = 0.162m BQ = 0.1m BC = 0.3mConsider an Atwood machine with m= 2.Okg and M= 12.0kg, and the pulley's mass is negligible. M m 3) Calculate the acceleration of the system. Your answer 4) Calculate the magnitude of the Tension on the rope. Your answer Consider the SAME masses from the previous scenario on a pulley system on an incline plane. The angle of inclination is 40'. 5) Calculate the acceleration of the system. Your answer 6) Calculate the magnitude of the Tension on the rope. Your answer