Aman pushes a lawn mower on a level lawn with a force of 250n. if 40% of this force is directed downward, how much work is done in joules by the man in pushing the mower 6.2 m?

When considering work, we always take the force directed along the axis of motion (in this case, the horizontal axis). If 40% of the force is directed downward, then 60% of the force is being directed horizontally, so the horizontal force is 250*0.6 = 150N. Work = Force * distance = 150N * 6.2m = 930J

Hahahahaha nice. my guess would be age or they moved the grocery store. ; ) and remind him next time you are late getting home that it takes a long time to go 12miles, hahahave a good one!

therefore, the efficiency is: