sandercock
Mar29-10, 11:15 PM
hi
I am normally good at physics, but i am abit stuck, because i feel im missing relevant information.
A 100g arrow is shot vertically from a bow whose effective spring constant is 500 n/m,If the bow is drawn 65cm before shooting the arrow, to what height does the arrow rise?
i worked out the force being put on the arrow is 325 N, but how do i work out the initial velocity?i know that when i have that i can just do the equation
Y=VoSin0ot-0.5gt^2
etc to find the distance in the Y-axis, but how do i get to this step!
Help me!
/alex
I am normally good at physics, but i am abit stuck, because i feel im missing relevant information.
A 100g arrow is shot vertically from a bow whose effective spring constant is 500 n/m,If the bow is drawn 65cm before shooting the arrow, to what height does the arrow rise?
i worked out the force being put on the arrow is 325 N, but how do i work out the initial velocity?i know that when i have that i can just do the equation
Y=VoSin0ot-0.5gt^2
etc to find the distance in the Y-axis, but how do i get to this step!
Help me!
/alex