A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 45 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 352 J?
1 Answer
Jun 8, 2018
I tried this:
Explanation:
We can use the Theorem of Work (W) and Kinetic Energy (K):
it basically tells us that the work done on our system will show up as change in Kinetic Energy:
We know that the initial Kinetic Energy,
and so: