Problem:

A frog makes a mighty leap, leaving the ground at an angle of 45 degrees and traveling a horizontal distance of 1.47 (m) in 0.55 (s).

a)What is vx?

b)What is vyi?

c)What is the magnitude of the initial velocity, at an angle of 45 degrees?

Now I solved question b by drawing a little figure and finding vyi, and used that to find time and then used that to find vx. But im not quite sure how to find the magnitude?

Δy=?

vyi=2.67 (m/s)

vyf=?

a=-9.8 (m/s^2)

t=.55 (s)

Δx=1.47 (m)

vx=2.76 (m/s)

t=.55 (s)

Thanks in advance