## Projectile motion – Problem

Hi. Can you help me please? I have trouble with this question:

An arrow is aimed horizontally, directly at a target 17.2 meters away. when the arrow is released, it lands 0.08 meters below the target point. How long was the arrow in the air? How fast was the arrow moving when it left the bow?Nadia asked

Answer

Consider vertical motion. Take y =1/2 gr^2=0.08m and find t

Considering horizontal motion, find Vx from the relation x =Vx t

Find Vy =gt

Find V =√{Vx^2+Vy^2}

## String Theory

Can string theory be demonstrated? Is my understanding of the theory incorrect? I’d like to demonstrate the theory by using the strings of a guitar, so is string theory applicable, or should I focus more on pitch and harmonics?

Asked Brandon Dickey