Chapter 9 Linear Momentum and Chapter 9 Momentum and the conservation of Momentum 1. Linear Impulse and Momentum 2. Impulse-Momentum Theorem and Conservation of Momentum
Chapter 9 Linear Momentum and Collisions Chapter 9 Momentum and The Conservation of Momentum 1. Linear Impulse and Momentum 2. Impulse-Momentum Theorem and Conservation of Momentum
Chapter 9 Linear Momentum and New Words Impulse 冲量 Momentum 动量 Impulse and linear momentum theorem Collisions 碰撞
Chapter 9 Linear Momentum and Collisions New Words Impulse 冲量 Momentum 动量 Impulse and linear momentum theorem Collisions 碰撞
Chapter 9 Linear Momentum and 9-1 Momentum and Its relation to Force P200-201 1. momentum(动量) Momentum of an object is defined as the product of its mass and its velocity Momentum is presented by the symbol p 动量 p= no
Chapter 9 Linear Momentum and Collisions 9-1 Momentum and Its Relation to Force P200-201 1. momentum（动量） Momentum of an object is defined as the product of its mass and its velocity. Momentum is presented by the symbol P . 动量 v p = m
Chapter 9 Linear Momentum and 2 Newton second law of motion in terms of momentum ip dt m is a constant, Sof= dp d(my) dt dt F d For a particle net net,s
Chapter 9 Linear Momentum and Collisions 2 Newton second law of motion in terms of momentum m is a constant， so： dt dP Fnet = Fnet = ma For a particle t p F d d = ma t m t p F = = = d d( d d v)
Chapter 9 Linear Momentum and 9-2 Conservation of linear momentun(动量守恒 p202-205) In equation: FY dP net dt Let F=0 net P=constant vector 动量守恒定律 若质点系所受的合外力为零F=∑F=0 则系统的总动量守恒,即P=∑保持不变
Chapter 9 Linear Momentum and Collisions 9-2 Conservation of linear momentum（动量守恒 p202-205） dt dP Fnet In equation: = Let Fnet = 0 P = constant vector 若质点系所受的合外力为零 则系统的总动量守恒，即 保持不变 . 0 ex ex = = i F Fi = i p pi 动量守恒定律