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
189 joules
189 joules
78.4 joules
78.4 joules
640 joules
640 joules
145.6 joules
To find the amount of energy Ronald put into the inclined plane, we can use the formula:
Efficiency = Energy output / Energy input
Given that the efficiency is 35% and the energy input is 224 joules, we can rearrange the formula to solve for the energy output.
35% = Energy output / 224 joules
To find the energy output, we can cross multiply:
0.35 * 224 joules = Energy output
So, the energy output is 78.4 joules.
Therefore, Ronald put 78.4 joules of energy into the inclined plane.