More people end up in U.S. emergency rooms because of fall-related injuries than from any other cause. At what speed v would someone hit the ground who accidentally steps off the top rung of a 4.0 m tall stepladder? a.8.9 m/s b.7.1 m/s c.6.2 m/s d.8.0 m/s e.9.8 m/sA spring gun launches a heavy steel marble with an initial speed of 19.6 m/s. How long will the steel marble be in the air? a.6.0 s b.2.0 s c.3.0 s d.5.0 s e.4.0 sA car is traveling in a straight line along a straight, level road at 15.0 m/s when it uniformly accelerates at 3.00 m/s2 for a time of 6.00 s. How far does the car travel in this time? a.90 m b.54 m c.126 m d.162 m e.144 m

Given data: Height (h) = 4.0 m Initial velocity (v0) = 0 m/s Required: Speed when hit the ground

Answered: More people end up in U.S. emergency…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter2: One Dimensional Motion

Section: Chapter Questions

Problem 64PQ

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More people end up in U.S. emergency rooms because of fall-related injuries than from any other cause. At what speed v would someone hit the ground who accidentally steps off the top rung of a 4.0 m tall stepladder?

a.

8.9 m/s

b.

7.1 m/s

c.

6.2 m/s

d.

8.0 m/s

e.

9.8 m/s
1. A spring gun launches a heavy steel marble with an initial speed of 19.6 m/s. How long will the steel marble be in the air?
  
  a.
  
  6.0 s
  
  b.
  
  2.0 s
  
  c.
  
  3.0 s
  
  d.
  
  5.0 s
  
  e.
  
  4.0 s
  1. A car is traveling in a straight line along a straight, level road at 15.0 m/s when it uniformly accelerates at 3.00 m/s² for a time of 6.00 s. How far does the car travel in this time?
    
    a.
    
    90 m
    
    b.
    
    54 m
    
    c.
    
    126 m
    
    d.
    
    162 m
    
    e.
    
    144 m

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