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Author Question: A car of mass 1689 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ... (Read 225 times)

fox

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on: Jul 29, 2018
A car of mass 1689 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic.
 
  If the velocity of the truck is 17 km/h (in the same direction as the car's initial velocity) after the collision, what was the initial speed of the car? A) 19 km/h
  B) 38 km/h
  C) 29 km/h
  D) 10 km/h

Question 2

State the Conservation of Mechanical Energy
 
  What will be an ideal response?


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Eazy416

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

In systems with conservative forces only, the mechanical energy is conserved.


fox

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Reply #2 on: Jul 29, 2018
Thanks


Eazy416

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Reply #3 on: Jul 29, 2018
Welcome :)


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