Find velocity at a specific time?

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SUMMARY

The discussion centers on calculating the velocity of a mailbag at a specific time and determining how long it takes for the mailbag to reach the ground after its release. Participants seek clarity on the physics concepts involved, including initial velocity and height. The problem requires understanding of kinematic equations and free-fall motion, particularly in the context of gravity's effect on the mailbag's descent.

PREREQUISITES
  • Understanding of kinematic equations in physics
  • Knowledge of free-fall motion and gravitational acceleration
  • Familiarity with initial velocity and height concepts
  • Basic problem-solving skills in physics
NEXT STEPS
  • Study kinematic equations for motion under gravity
  • Learn how to calculate time of flight for free-falling objects
  • Explore the concept of initial velocity in projectile motion
  • Review examples of similar physics problems involving free fall
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Students preparing for physics exams, educators teaching kinematics, and anyone needing assistance with problems related to motion under gravity.

treyh
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Hey guys. I need help figuring out how to do this problem. I have a test tomorrow and i am currently studying. I would like to know how they got this answer. I'm completely stumped and need help so thanks in advance!

Here is the question:

http://img405.imageshack.us/img405/624/physicsv.jpg

Also, if not too much trouble can you help me with part c to this problem?:

(c) How long after it's release does the mailbag reach the ground?
 
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treyh said:
Also, if not too much trouble can you help me with part c to this problem?:

(c) How long after it's release does the mailbag reach the ground?

What do you think, how does the mailbag move? At what height does it start? What is its initial velocity?

ehild
 

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