Lecture12_Pushkar_2011 - PHYSICS 220 Lecture 12 Collision...

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

View Full Document Right Arrow Icon
Lecture 12 1 Lecture 12 Collision and Explosion PHYSICS 220
Background image of page 1

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

View Full DocumentRight Arrow Icon
Lecture 12 2 Example A freight train is being assembled in switching yard. Car 1 has a mass of m 1 =65 × 10 3 kg and moves at a velocity v 01 =0.80 m/s. Car 2 has a mass of m 2 =92 × 10 3 kg and moves at a velocity v 02 =1.3 m/s and couples to Car 1. Neglecting friction, find the common velocity v f of the cars after they become coupled. m 2 m 1 v 02 v 01 initial m 2 m 1 v f final
Background image of page 2
Lecture 12 3 Example Apply conservation of momentum: P i =m 1 v o1 +m 2 v 02 P f =(m 1 2 )v f (m 1 2 f = m 1 v 01 2 v 02 v f = m 1 v 01 + m 2 v 02 m 1 + m 2 = (65 × 10 3 kg )(0.8 m / s ) + (92 × 10 3 kg )(1.3 m / s ) (65 × 10 3 kg + 92 × 10 3 kg ) = 1.1 m / s A fright train is being assembled in switching yard. Car 1 has a mass of m 1 =65 × 10 3 kg and moves at a velocity v 01 =0.80 m/s. Car 2 has a mass of m 2 =92 × 10 3 kg and moves at a velocity v 02 =1.3 m/s and couples to it. Neglecting friction, find the common velocity v f of the cars after they become coupled.
Background image of page 3

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

View Full DocumentRight Arrow Icon
Lecture 12 4 iClicker A railroad car is coasting along a horizontal track with speed v when it runs into and connects with a second identical railroad car, initially at rest. Assuming there is no friction between the cars and the rails, what is the speed of the two coupled cars after the collision?
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/10/2011 for the course PHYS 220 taught by Professor Chang during the Spring '09 term at Purdue University-West Lafayette.

Page1 / 23

Lecture12_Pushkar_2011 - PHYSICS 220 Lecture 12 Collision...

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

View Full Document Right Arrow Icon
Ask a homework question - tutors are online