A450- newton gymnast jumps upward a distance of .50 meters to reach the uneven pararell bars. how much work did she do before she even began her routine?

The unit of work is Joules. To find Joules, the formula for it shall be applied. The formula for it would be to multiply the force exerted by an object to the distance it has travelled to get the work done. As for this problem, the given variables are 450 Newtons and 0.50 meters of distance. To simplify things, we will be using the formula using units and then substitute them with their corresponding values.
The formula would be J = N x m

J = 450 N x 0.50 m
J = 225 Joules or 225 J

So the answer and the work that she did before she even began her routine would be 225 J.

Independent variable is something that is changed in a experiment.