Lab 1-Mechanics laboratory ---Target hitting through collision Goal This experiment is designed for the review of mechanics. In this experiment, learn to predict, nd ther Related topics Projectile motion, collision, conservation law Introduction motion after being collided by another steel ball of the same mass at the bottom of its Swing. In this experiment, you will be challenged to hit the target with a steel ball that is in projectile The followings are definitions of some related concepts Projectile motion is the motion of an object moving through the air, subject to the acceleration of gravity. The object is called a projectile, and its path is called its trajectory o A conservative force is one, like gravity, for which work done by or against it depends only on the starting and ending points of a motion and not on the path taken Conservation of mechanical energy: the total mechanical energy (i.e. sum of kinetic energy and potential energy) of a system that experiences only conservation forces is constant, can only changes forms among kinetic energy and various types of potential energy. Such a system is called a closed syster Conservation of momentum: the total momentum of any isolated system, with any numbers of bodies in it, is conserved An isolated system is defined to be one for which the net external forces is zero o An elastic collision is one that conserves internal kinetic energy. Internal kinetic energy is the Im of the kinetic energies of the bodies in the sys An inelastic collision is one in which internal kinetic energy changes. This means the forces between colliding objects may remove or add internal kinetic energy For more details, please refer to your text book "College Physics", especially $3.4, $6.4-6 and§7.3-6 Strike BalI Struck ball d justable holder there is a horizontal line in Adjustable Stage the middle of the transparent box, which ndicates the height of the center of the strike ball Fig. I Schematic diagram of the experiment device2 Lab 1 —Mechanics laboratory ——Target hitting through collision Goal This experiment is designed for the review of mechanics. In this experiment, learn to predict, operate, observe, analysis, and then improve...... Related topics Projectile motion, collision, conservation law Introduction In this experiment, you will be challenged to hit the target with a steel ball that is in projectile motion after being collided by another steel ball of the same mass at the bottom of its swing. The followings are definitions of some related concepts:  Projectile motion is the motion of an object moving through the air, subject to the acceleration of gravity. The object is called a projectile, and its path is called its trajectory.  A conservative force is one, like gravity, for which work done by or against it depends only on the starting and ending points of a motion and not on the path taken.  Conservation of mechanical energy: the total mechanical energy (i.e. sum of kinetic energy and potential energy) of a system that experiences only conservation forces is constant, can only changes forms among kinetic energy and various types of potential energy. Such a system is called a closed system.  Conservation of momentum: the total momentum of any isolated system, with any numbers of bodies in it, is conserved. An isolated system is defined to be one for which the net external forces is zero.  An elastic collision is one that conserves internal kinetic energy. Internal kinetic energy is the sum of the kinetic energies of the bodies in the system.  An inelastic collision is one in which internal kinetic energy changes. This means the forces between colliding objects may remove or add internal kinetic energy. For more details, please refer to your text book "College Physics", especially §3.4, §6.4-6, and §7.3-6. Fig. 1 Schematic diagram of the experiment device There is a horizontal line in the middle of the transparent box, which indicates the height of the center of the strike ball