The cable of a crane is lifting a 850 kg girder. The girder increases its speed from 0.25 m/s to 0.75 m/s in a distance of 5.5 m.
How much work is done by tension?
The cable of a crane is lifting a 850 kg girder. The girder increases its speed...
9. A crane lifts a 2,000 lb load vertically 30 ft with a 1" cable weighing 1.68 lb/ft. (a) How much work is done lifting the cable alone? (b) How much work is done lifting the load alone? (c) Could one conclude that the work done lifting the ca- ble is negligible compared to the work done lifting the load? 9. A crane lifts a 2,000 lb load vertically 30 ft with a 1" cable weighing 1.68 lb/ft. (a) How...
A 13.5 m boom, AB, of a crane lifting a 3,000 kg load is shown below. The center of mass of the boom is at its geometric center, and the mass of the boom is 2,800 kg. For the position shown, calculate the following. tension T in the cable (in N) N the force at the axle A (Give the magnitude in newtons and the direction in degrees counterclockwise from the +x-axis. Assume that the +x-axis is to the right.)...
A 1500-kg air conditioning unit is being lifted by a crane onto the roof of a building. The unit starts on the ground and is raised straight up to a height of 12.0 m by a cable attached to the crane. The tension in the cable during the lift is 1.54 × 104 N. (Reminders: a free body diagram will probably be helpful, and work can be positive or negative.) (a) How much work is done on the air conditioning...
The crane shown in the figure is lifting a 463-kg crate upward with an acceleration of 2.60 m/s2. The cable from the crate passes over a solid cylindrical pulley at the top of the boom. The pulley has a mass of 111 kg. The cable is then wound onto a hollow cylindrical drum that is mounted on the deck of the crane. The mass of the drum is 124 kg, and its radius (the same as that of the pulley)...
A statue with a mass of 103.1 kg is being lifted by a crane attached to a building. At one point in the lift, the statue is moving upwards with a speed of 5.1 m/s and slowing down (the speed is getting smaller). The magnitude of the acceleration is 1.82 m/s^2. What is the tension in the cable lifting the statue? Give your answer in N to three significant figures. Assume the rope is ideal.
A cable lowers a 1400 kg elevator so that the elevator's speed increases from zero to 4.0 m/s in a vertical distance of 5.6 m . What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the elevator and Earth.) What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the elevator only.)
My Notes 5. -/11 points oscolPhysAP2016 7.1.WA.003. In a shipping yard, a crane operator attaches a cable to a 1,060 kg shipping container and then uses the crane to lift the container vertically at a constant velocity for a distance of 40 m. Determine the amount of work done (in J) by each of the following. (a) the tension in the cable (b) the force of gravity
A crane is being used to lift a container onto a cargo ship. The crane initially lifts the container up with a constant positive (upwards is positive) acceleration, a l i f t . The crane then reduces the tension in the cable so that the container slows to a stop with a constant negative (downward) acceleration, a s t o p = - 3 a l i f t . Assume the acceleration goes directly from upwards to downwards...
A cable lowers a 1150 kg elevator so that the elevator's speed increases from zero to 4.0 m/s in a vertical distance of 6.4 m What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the elevator and Earth.) Express your answer to two significant figures and include the appropriate units. What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the...