moment

### **Momentum**

The product of an object's mass and its velocity.

### **Newton’s Second Law (Momentum Form)**

The rate of change of momentum of an object is equal to the net force applied to it.

### **Impulse**

The product of the average force and the time interval during which the force acts.

### **Conservation of Momentum**

The total momentum of an isolated system of objects remains constant.

### **Elastic Collision Relative Velocity**

In a one-dimensional perfectly elastic collision, the relative speed of approach equals the relative speed of separation.

### **Completely Inelastic Collision**

A collision in which the objects stick together afterward, resulting in a single final velocity.

### **Center of Mass**

The point at which the entire mass of a system can be considered to be concentrated for the purpose of describing its motion.

### **Ballistic Pendulum**

Used to determine the velocity of a projectile by measuring the height a hanging block swings after impact.