The velocity of the 8.3-kg cylinder is 0.45 m/s at a certain instant. What is its speed v after dropping an additional 1.58 m? The mass of the grooved drum is 13.2 kg, its centroidal radius of gyration is k¯ = 330 mm, and the radius of its groove is ri = 290 mm. The frictional moment at O is a constant 14.6 N·m.

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

What precautions should you take to prevent injuries when dealing with heavy loads?