1 / 8

Momentum and Impulse

Momentum and Impulse. Chapter 6, Section 1 Pg. 208 - 214. 6.1- Momentum and Impulse. Momentum is a measure on how difficult it is to stop a moving object. Momentum is a vector quantity. p = m ν. Measured in kg • m/s. Objects with a high momentum can have a greater mass, velocity, or both!.

shellie-farmer
Download Presentation

Momentum and Impulse

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Momentum and Impulse Chapter 6, Section 1 Pg. 208 - 214

  2. 6.1- Momentum and Impulse Momentumis a measure on how difficult it is to stop a moving object. Momentum is a vector quantity. p = mν Measured inkg • m/s

  3. Objects with a high momentum can have a greater mass, velocity, or both! 1 2 ν1 = ν2 m1 > m2

  4. Falling Object 1 Falling Object 2 ν1 > ν2 m1 = m2

  5. A change in momentum takes force and time. ΣFΔt = Δp This product of force and the time over which it acts on an object is known as animpulse (FΔt). ΣFΔt = mvf – mvi Impulse-Momentum Theorem

  6. Wall exerts an impulse on the moving ball, thereby causing a change in momentum p1 p2

  7. Sample Problem A 1400 kg car moving westward with a velocity of 15 m/s collides with a pole and is brought to rest in 0.30 s. What is the magnitude of the force exerted on the car during the collision? (Pg. 211)

  8. ΣFΔt = mνf– mνi ΣF (0.30 s) = (1400 kg)(0 m/s) – (1400 kg)(- 15 m/s) ΣF (0.30 s) = 21,000 kg • m/s ΣF = 7.0 x 104 N to the East Δt = 0.30 s νf = 0 m/s m = 1400 kg νi = -15 m/s

More Related