A girl pushes herself up a steep ramp in her wheelchair.  She gains a vertical distance of 25.8 m when she reaches the top of the ramp.  She turns around and coasts back down the ramp.  If the combined mass of the girl and her wheelchair is 64.6 kg, what would be her coasting speed at the bottom of the ramp?

You MUST

 show

all work starting with the formula (and rearrangement if needed).  The formula must use symbols for formulas introduced

in the VVS course.  Next, you need to

show the substitution of values into the formula, then the calculated

answer.  Remember to include units and use correct significant digits in

your final answer.  Responses only showing the final answer will receive a

zero grade.