Summary

• Vectors
• Vector components
• Projectiles

• Class Quiz



• Law of Inertia
  • definition
  • demonstrations & video
  • another video and a response
  
  Example #1
  
  
  
• Newton's Second Law
  • 
  • rolling cart demo
    Example #2
    Example #3
    
  
  

A pitcher can throw a ball at 100 mph (44.7 m/s). If he could throw that fast straight upwards, how high would the ball go?
A. 2.28 m
B. 44.7 m
C. 204 m
D. 102 m
Answer
















Which has more inertia, a supertanker at rest or a motorboat going 15 m/s?
A. supertanker
B. motorboat
C. they're the same
Answer















klm
What force is required to accelerate a 1500 kg car from rest to 25 m/s in 10 sec?
A. 375 kN
B. 3.75 kN
C. 1.67 mN
D. 0.167 N
Answer















klm
If you pull on a 15 kg sled with a net force of 45 N, what is its acceleration?
A. 675 m/s²
B. 60 m/s²
C. 3.00 m/s²
D. 0.333 m/s²

Answer















 



D. 102 m





















 



A. supertanker
Inertia depends only upon the mass; the more mass, the more inertia.




















 



B. 3.75 kN





















 



C. 3.00 m/s²