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Homework Help: Physics

Posted by autumn on Thursday, September 30, 2010 at 11:37pm.

Part 1:
A car accelerates uniformly in a straight line
from rest at the rate of 2.2 m/s2.
What is the speed of the car after it has
traveled 52 m?
Answer in units of m/s.
the answer is 15.126

Part 2:
How long does it take the car to travel 52 m?
Answer in units of s.

???

• Physics - autumn, Thursday, September 30, 2010 at 11:45pm

  6.8754545454545
  

• Physics - MathMate, Friday, October 1, 2010 at 7:27am

  Use
  v²-u² = 2aS
  where S=distance travelled
  a=acceleration
  u=initial velocity
  v=final velocity
  (the given answer is correct)
  
  Use
  v=u+at
  (the given answer is also correct)
  

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