I have no clue

  • Thread starter Lovely
  • Start date
  • #1
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I have searched for this answer all day long.
Why is Vave multiplied by 2 to obtain Vf?
 

Answers and Replies

  • #2
5
0
i feel Vave=(Vf+Vi)/2
since Vi=0,we have the result.
 
  • #3
Gokul43201
Staff Emeritus
Science Advisor
Gold Member
7,082
20
Going by the definitions, we have, for the average velocity :

[tex]v_{ave} = \frac{total~distance~traveled}{total~time~taken} = \frac {s}{t} [/tex]


Now just substitute for s, from the equations of motion to get the required result.
 

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