Answer:
14.1 m/s
Explanation:
The work-energy theorem says that the work done on an object is equal to its change in kinetic energy. Work is force times distance, and kinetic energy is half the mass times the square of the speed.
W = ΔKE
Fd = ½ mv²
v² = 2Fd / m
v² = 2 (50 N) (0.5 m) / (0.25 kg)
v = 14.1 m/s
