Question

Find the initial velocity and angle of trajectory if dy is 7.6m, dx is 15.7m, vx is+13.08m/s, time is 1.2s, and vy is +11.77m/s.

Answer 1

And the initial velocity is similarly given by

\[v^2 = v_x^2+v_y^2\]

Answer 2

Is the problem set up correctly?

\[d_y=7.6m \\ d_x=15.7m \\ \ \\ v_y = 11.77m/s \\ v_x = 13.08m \\ \ \\ t=1.2s\]



Luckily most of the information is useless! The only thing you need to do to find the angle of trajectory is look at the velocity vector (see above post)