[填空题]
The two masses shown in lisdb*:v1mavhpm cm8 71u jd2()yhm - Fig. 4-52 are each ifgud 3,+(si jxomczkapxy/;1+ m nt2. nitially 1.80 m above the ground, and the massless frictionless pulley is 4.8 m above the ground. What maximum height does the lighter object reach after the system is released? [Hint: First determine the acceleration of the lighter mass and then its velocity at the moment the heavier one hits, gz2d/n+(+1; mfau m sxxck toj3pi.y the ground. This is its "launch" speed. Assume it doesn't hit the pulley.]
