{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Angularmomentummassxvelocityxdistancefromaxisofrotatio

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: the product of mass and velocity, and is a vector quantity. momentum = mass x velocity p = mv · SI unit for momentum is kg×m/s or Ns. · To change the linear momentum of an object, a net unbalanced force is required. Force produces linear motion Examples: 1. Which has a greater momentum: the boulder or the runner? Why? 2. Calculate the momentum of a baseball that has a mass of 0.20 kg and is moving at a velocity of 30 m/s. m = v = p = 3. A truck with a momentum of 85000 kgm/s is moving with a velocity of 50 m/s. Determine its mass. m = v = p = 10 Physical Science 1 Chapter 3 ANGULAR MOMENTUM · Objects that move around an axis of rotation possess angular momentum. · A planet orbiting the sun (axis of rotation) possesses angular momentum. · Angular momentum is the product of mass, velocity and distance from axis or rotation. Angular momentum = mass x velocity x distance from axis of rotation L = m v r · To change the angular momentum of an object, a net unbalanced torque is required. · The opposite forces applied to the steering wheel produce a net torque which rotates the wheel. Therefore, Torque produces rotational motion · Torque is the product of force and lever arm. Torque = force x lever arm τ = F x r · The same force applied through a longer lever arm produces a larger torque. 11 Physical Science 1 Chapter 3 CONSERVATION OF MOMENTUM · The total momentum of a system remains unchanged before and after an event. · A system is a collection of ob...
View Full Document

{[ snackBarMessage ]}

What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern