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Describe momentum, what can change momentum, impulse, and the impulse-momentum theorem; Describe Newton’s second law in terms of momentum ; Solve problems using the impulse-momentum theorem
- 18.5 Capacitors and Dielectrics
Explain that electrical capacitors are vital parts of all...
- 10.2 Consequences of Special Relativity
Notice that when the velocity v is small compared to the...
- 8.3 Elastic and Inelastic Collisions
Elastic and Inelastic Collisions. When objects collide, they...
- 11.1 Temperature and Thermal Energy
The Kelvin scale is the temperature scale that is commonly...
- 8.2 Conservation of Momentum
where p′ 1 and p′ 2 are the momenta of cars 1 and 2 after...
- 21.3 The Dual Nature of Light
Figure 21.10 shows a comet with two prominent tails. Comet...
- 22.1 The Structure of The Atom
8.1 Linear Momentum, Force, and Impulse; 8.2 Conservation of...
- 22.4 Nuclear Fission and Fusion
As shown in Figure 22.26, a neutron strike can cause the...
- 18.5 Capacitors and Dielectrics
Week 4: Drag Forces, Constraints and Continuous Systems Week 4 Introduction Lesson 12: Pulleys and Constraints [12.1-12.5] Lesson 13: Massive Rope [13.1-13.6] ... Week 5: Momentum and Impulse. 16.2 Momentum Diagrams
Resolve the force and velocity (or impulse and momentum) vectors into their x, y, z components, and apply the principle of linear impulse and momentum using its scalar form.
We define linear momentum as mass times velocity and introduce impulse, the product of force and time. The impulse-momentum theorem states that impulse equals momentum change. Internal forces within …
Impulse-momentum diagrams do this by combining motion diagrams with basic geometry. Physicists use motion diagrams, similar to the one in Fig. 1, to describe an object’s velocity. The motion diagram contains key pieces of information.
Using our de nition of impulse from Eq.4, we arrive at the impulse-momentum theorem: ~J = ~p 2 ~p 1 (impulse-momentum theorem) (5) The change in momentum of a particle equals the net force multiplied by the time interval over which the net force is applied. If the P~ P F is not constant, we can integrate both sides of Newton’s second law
Big Idea: Conservation of momentum Justification: Force between mother-daughter is an internal force. Thus no external impulse so momentum is conserved. Plan: 1) Conserve momentum by setting P tot,i equal to P tot,f 2) Find the common speed of both after collision Execution of plan: 1) P i,tot = P f,tot 2) MV + m(0) = (M+m)V final
