# Find Legrangian function and motion of a particle

See the attached document.

Â© BrainMass Inc. brainmass.com February 24, 2021, 2:17 pm ad1c9bdddfhttps://brainmass.com/physics/velocity/find-legrangian-function-and-motion-of-a-particle-11901

#### Solution Preview

Let initial velocity of projection = u and angle of projection be Q (read as theta)

=> uh(horizontal component) = u*cos(Q) ...

#### Solution Summary

The answer is given in an equation.

$2.19