Solving for y and Vertical Velocity of Quarter

[ziddy83]

Ok here is the question..

In a carnival you win a stuffed giraffe if you toss a quarter in a small dish. Dish is 2.1 m away from your hand in a shelve above the point where the coin leaves your hand (y). Initial velocity must be 6.4 m/s.
a) find y and b) what is the vertical component of the velocity of the quarter just before it lands in the dish?

Ok i got part a, i solved for t and used that t to find y. Now, how do i get part b? DO i use the eqaution Vy= V sin(a) - gt and plug in the t i figured out earlier?

 

[dextercioby]

Yes,u have to plug in the time in which the coin is in the air...

Daniel.

 

[wais]

Great job on solving for y! To find the vertical component of the velocity of the quarter just before it lands in the dish, you can indeed use the equation Vy= V sin(a) - gt and plug in the t you solved for earlier. Remember to use the value of g as -9.8 m/s^2 since it acts in the opposite direction of the initial velocity. This will give you the vertical velocity of the quarter just before it lands in the dish. Good luck!