外研版（三起）（2012）小学英语三年级下册Module 8 Unit 2 Daming flies a kite in the park.教案

In the previous lectures we have described particle motion as it would be seen by an observer standing still at a fixed origin. This type of motion is called absolute motion. In many situations of practical interest, we find ourselves forced to describe the motion of bodies while we are simultaneously moving with respect to a more basic reference. There are many examples were such situations occur. The absolute motion of a passenger inside an aircraft is best

In addition to the equations of linear impulse and momentum considered in the previous lecture, there is a parallel set of equations that relate the angular impulse and momentum. Angular Momentum We consider a particle of mass, m, with velocity v, moving under the influence of a force F. The angular momentum about point O is defined as the \moment\ of the particle's linear

外研版（三起）（2012）小学英语三年级下册Module 8 Unit 2 Daming flies a kite in the park.教案(6)

外研版（三起）（2012）小学英语三年级下册Module 8 Unit 2 Daming flies a kite in the park.教案(4)

外研版（三起）（2012）小学英语三年级下册Module 8 Unit 2 Daming flies a kite in the park.教案(2)

外研版（三起）（2012）小学英语三年级下册Module 8 Unit 2 Daming flies a kite in the park.习题

外研版（三起）（2012）小学英语三年级下册Module 8 Unit 2 Daming flies a kite in the park.习题(1)

We will start by studying the motion of a particle. We think of particle as a body which has mass, but has negligible dimensions. Treating bodies as particles is, of course, an idealization which involves an approximation. This approximation may be perfectly acceptable in some situations and not adequate in some other cases. For instance, if we want to study the motion of planets it is common to consider each planet as a particle

外研版（三起）（2012）小学英语三年级下册Module 7 Unit 1 We fly kites in spring.课件(4)