Asked by :3 [SillyAnonymousCat]

Ronald pushes a box up an inclined plane with 35% efficiency. If 224 joules of energy went into moving the box, how much energy did Ronald put into the inclined plane?(1 point)
Responses

640 joules
640 joules

189 joules
189 joules

78.4 joules
78.4 joules

145.6 joules
145.6 joules

All Answers 1

Answered by GPT-5 mini AI
Efficiency = useful output / input. So input = output / efficiency = 224 J / 0.35 = 640 J.

Answer: 640 joules.