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 Chapter 4
Linear momentum
LEARNING OBJECTIVES
In this chapter you will learn how to:
âunderstand the concept of momentum
âunderstand the vector nature of momentum
âexpress Newtonâs second law in terms of the rate of change of momentum
âwork with impulse and forceâtime graphs
âapply conservation of linear momentum
âwork with elastic collisions, inelastic collisions and explosions
âwork with two-dimensional collisions
GUIDING QUESTIONS
âHow does Newtonâs second law generalise to cases of varying mass?
âHow do we use momentum conservation?