Car Forums A couple of physics questions for yous
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 03-20-2006, 10:16 AM #1 GreekWarrior CF Extraordinaire     Join Date: Jul 2004 Location: "Down-under" Posts: 2,369 A couple of physics questions for yous 1. A 0.001kg bullet 1000m/s strikes and passes through a 2kg block initially at rest. The bullet emerges from the block with a speed of 400m/s. To what maximum height will the block rise above its initial position? 2. High-speed stroboscopic photographs show that the head of a golf club of mass 0.23kg is travelling at 54.3m/s just before it strikes a 0.045kg golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 41.1m/s. Find the speed of the golf ball just after impact. 3. A railroad car of mass 2.17 x 10^4 kg is moving with a speed of 4.4m/s. It collides with four other coupled railroad cars, each of the same mass as the single car and moving in the same direction with an intial speed of 2m/s. a) What is the speed of the five cars after the collision? b) How much energy is lost in the collision? __________________
 03-20-2006, 10:49 AM #2 Wally I Know More Than You     Join Date: May 2004 Location: Oz Posts: 2,564 Playing with Newton's second laws are we? __________________ "She gave me a look only a mother could give a child."
 03-20-2006, 01:36 PM #3 chris_knows ๑۩۞     Join Date: Apr 2005 Location: Ontario, Canada Status:Trying to find my ish Posts: 7,630 Do your own homework jp What is this?...And using my math skills, they are impossible __________________
03-20-2006, 06:45 PM   #4
Bubba
null

Join Date: Nov 2003
Posts: 483
Quote:
 Originally Posted by GreekWarrior 1. A 0.001kg bullet 1000m/s strikes and passes through a 2kg block initially at rest. The bullet emerges from the block with a speed of 400m/s. To what maximum height will the block rise above its initial position?

I'm guessing the bullet is coming up through the bottom of the block, correct?
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03-20-2006, 10:24 PM   #5
GreekWarrior
CF Extraordinaire

Join Date: Jul 2004
Location: "Down-under"
Posts: 2,369
Quote:
 Originally Posted by Bubba I'm guessing the bullet is coming up through the bottom of the block, correct?

Yep.

These are acouple of question from my physics assignment.
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