By dropping a ball and seeing how long it takes to hit the ground or throw a ball up and time it as well
Answer:51.44 units
Explanation:
Given
x component of vector is 
y component of vector is 
so position vector is

Magnitude of vector is


|r|=51.44 units
Direction

vector is in 2nd quadrant thus


D, as the others will result in the likelihood of the particles colliding decreasing
Hope it helps))
the wavelength is to be 56.67 cm and I know that i should be applying the double slit equation for destructive interference.