the crane shown is the lifting a 180 kg crate up-ward with an acceleration of 1.2 m/s^2the cable from the crate passes over a solid cylindrical pulley at the top of the boomthe pulley has a mass of 130 kgthe cable is then wound onto a hollow cylindrical drum that is mounted on the deck of the cranethe mass of the drum is 150 kg, and its radius is 0.76 mthe engine applies a counterclockwise torque to the drum in order to wind up the cable(ignore the mass of the cable)
Are you given the moment of inertia of the pulley and cylindrical drum, or only their masses? If the latter is true, ignore themTorque Moment Arm × Force Our moment arm 0.76 metersOur force mass × accelerationOur mass 180 kgOur acceleration 1.2 m/s^2 + acceleration due to gravity 1.2 m/s^2 + 9.8 m/s^2So Torque 0.76m × 180kg × (1.2 + 9.8)m/s^2 1.5 kN m if you round to 2 significant figures and use the kilonewtons times meters unit for torqueDrostie: Why did you take into account the weight of the pulley? The pulley is being held by the boom, not the cable.
Wrap it in the aluminum then just lay it in the oven, bon appetite :D
Yes, you can place the wrapped bread directly on the oven rackYou could even put the bread directly on the rack if you simply wanted to broil the top
yes! you cover food w/ aluminum foil and you can certainly use foil
