KingBigness said:Homework Statement
If the extension of the bow is 5.5 cm and you have determined that this corresponds to 305 mJ , what is the velocity with which a 15 gm arrow will leave the bow if 64 percent of the stored energy is transferred to the arrow?
Calculate the velocity in m/s but do not include the units in your answer.
Homework Equations
none
Please help!
KingBigness said:wait...thats not right...0.64FD=1/2mv^2?
The velocity of an arrow can be calculated by using the formula: velocity = square root (2 x stored energy / arrow weight).
Stored energy refers to the potential energy that is stored in the bow when it is drawn back. This energy is then transferred to the arrow when it is released, causing it to move at a certain velocity.
Stored energy is usually measured in foot-pounds (ft-lbs) or joules (J), while arrow velocity is measured in feet per second (fps) or meters per second (m/s).
Yes, there are other factors that can affect the calculation, such as the efficiency of the bow, the type and quality of the bowstring, and the type of arrow used.
Yes, it is important to have an accurate calculation of arrow velocity as it can impact the accuracy and distance of the arrow when it is released from the bow. It is also essential for safety reasons to ensure that the arrow is not traveling at an unsafe velocity.