Calculate Speed of Hawk's Shadow on Ground

[madinsane]

When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 4.15 m/s at 54.5° below the horizontal. Calculate the speed of her shadow on the level ground.

Homework Statement

Homework Equations

vxi=vicosθ vyi=visinθ (i think)

The Attempt at a Solution

360-54.5=305.5
4.15cos305.5=-2.99i
4.15sin305.5=-2.88j
then get the modulus of the vector for the speed. Gave me 4.155
Its wrong though?
Help?
Tell me where I went wrong and where to begin
Thanks

 

[Ericv_91]

Where is the original question?

 

[madinsane]

Where is the original question?

oops sorry!

 

[Ericv_91]

Is your calculator in radians or degrees?

 

[madinsane]

is your calculator in radians or degrees?

it was on radians! Thank you! I got the right answer!

 

[Ericv_91]

Careful Careful... Make sure you never forget this during a test!