{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

20MomentumImpulse

# 20MomentumImpulse - 20 Momentum and Impulse Conservation...

This preview shows pages 1–5. Sign up to view the full content.

20 Momentum and Impulse Conservation laws common: e.g. mass: pour 100 g of vinegar into 100 g of oil. what's the mass of the vinaigrette? Many other physical quantities often conserved momentum angular momentum energy charge

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
momentum vector: direction important Newton's 2 nd : p m v The cart’s change of x-momentum is A.–30 kg m/s. B.–20 kg m/s. C.–10 kg m/s. D. 10 kg m/s. E. 30 kg m/s. F = d p dt
impulse impulse changes momentum J t i t f F t dt = F avg t J = p F avg p f = p i J = m v i F dt p f = 2 kg  1 m / s − 2 N  1 s kg m / s 2 N p f = 0 kg m / s v f = p f m = 0 m / s follow up: workbook 9.6, page 9-2

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Force picture: workbook 9.9b (page 9-4) A falling rubber ball bounces off the floor during fall earth exerts weight on ball force causes downwards acceleration ball exerts (equal!) interaction force on earth
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 9

20MomentumImpulse - 20 Momentum and Impulse Conservation...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online