Would it be faster or slower if you fired it down or up? The acceleration due to gravity is perpendicular to the bow acceleration when fired horizontally, no?
A 0.062 kg arrow is fired horizontally. The bowstring exerts an average force of 65 N on the arrow over a distance of 0.75 m. With what speed does the arrow leave the bow?
need in m/s
is this just a simple equation problem, to find velocity?
or F = mass * acceleration?
or just need to find velocity?
the part that says horizontally, is confusing me.
The work done is simply since the force and displacement are in the same direction. since the initial speed of the arrow is 0 m/s. Thus
Note: Here I am using a constant F. In simple cases we can get away with using an average force as a constant force over a time interval. (Perhaps in all cases. I'm trying to be conservative as I'm too tired to think through details right now.)