A student wearing frictionless in-line skates on a horizontal surface
Explanation:
Force, F = 47 N
Initial velocity, u = 0
Final kinetic energy, Kf = 354 J
Let the distance traveled by the student be s. According to the work energy theorem,
Work done by all forces = Change in kinetic energy
Force x distance = final kinetic energy - initial kinetic energy
47 x s = 354
s = 7.53 m