Lecture 16: Momentum, Collisions

These flashcards cover the key concepts of momentum, collisions, and center of mass from the lecture notes.

Inelastic collisions conserve but not .

momentum, kinetic energy

In a perfectly inelastic collision, objects stick together and have __ after the collision.

the same velocity

Total momentum is conserved for and collisions.

elastic, inelastic

For elastic collisions, both momentum and __ are conserved.

kinetic energy

In an elastic collision, the equation for momentum before and after is represented as __.

ptotal,f = ptotal,i

For elastic collisions, if two objects collide, their total kinetic energy before the collision is equal to __ after the collision.

the total kinetic energy

When analyzing center of mass, the position is defined as __ of the object’s mass.

the weighted average

When two masses are connected by a light rod, the center of mass is closer to __ if one mass is much heavier.

the heavier mass

In the case of a waiter lifting a tray, the position of the hand to lift should be determined by the __ of the bottles on the tray.

center of mass (XCM)