A Student and Roller Skates
Explanation:
To find out how far the student must be pushed, we can use the formula:
Work (W) = Force (F) x Distance (d)
Given that the force applied is 100 N and the final kinetic energy is 500 J, we can use the work-energy theorem to calculate the distance:
500 J = 100 N x d
d = 500 J / 100 N = 5 meters
Therefore, the student must be pushed a distance of 5 meters starting from rest to achieve a final kinetic energy of 500 J.