What were Jack and Jill's velocities on the hill?

[gbedenba]

Homework Statement

Jack and Jill ran up the hill at 3.6 m/s. The horizontal component of Jill's velocity vector was 2.3 m/s.

(a) What was the angle of the hill?


(b) What was the vertical component of Jill's velocity?

Homework Equations

?

The Attempt at a Solution

I don't know where to start

 

[mgb_phys]

Think of a triangle.
Jill has moved horizontally at 2.3m/s so draw a horizontal line 2.3 units long
she moves up the slope at 3.6m/s so draw the slope of the triangle 3.6 units long.

Then all you need to find is the angle and the length of the third side.
You can use trig for this, but you can get a good estimate from your drawing.

 

[gbedenba]

thanks! that helped a lot!