5-17 A 0.25 kg stone tied to a rope is swung to make a circular motion in a
vertical plane. If the circle is of radius
300 cm, what is the minimum uniform
speed of the stone that will keep the
rope taut? [Answer = 1.71 m/s]

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.