Calculating the Vertical Height of a Kangaroo Jump

AI Thread Summary
To calculate the time a kangaroo is in the air after jumping to a height of 2.3 m, the relevant kinematic equations must be applied. One participant claims to have arrived at a time of 0.68 seconds but seeks clarification on the methods used. The discussion emphasizes the need for specific kinematic equations rather than a general reference to "kinematics." Participants are encouraged to share their calculations to verify the results. The focus remains on accurately determining the time of flight based on the jump height.
lostfan176
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Homework Statement


A kangaroo jumps to a vertical height of 2.3 m. How long was it in the air before returning to Earth?


Homework Equations



kinamatics

The Attempt at a Solution



i got .68 which i think is rite but i don't know what do you get?
 
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I would much prefer to see HOW you arrived at that answer. Under "relevant equations" you have "kinematics" which NOT an equation! What equations did you use?
 
the four kinematic equations

http://www.glenbrook.k12.il.us/gbssci/Phys/Class/1DKin/U1L6a1.gif

i used all of them and still derived at .68
 
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