Ask a New Question

Question


A 90 kg mover climbs a ladder to a height of 8 m in 32 s. Find the power rating of the mover. I solved by using P= mgh/t and came up with 220.5 watts. Is this correct or am I suppose to use P=w/t and not use gravity in the equation?
13 years ago

Answers

drwls
You will get the same answer either way, if w = work. Gravity enters into both calculations.
13 years ago

Related Questions

julia needs to purchase a ladder that just reaches the top of a 16 foot building. if the bottom of t... One end of a long 26 foot ladder is on the floor and the other end rests on a verical wall the botto... A 90 kg mover climbs a ladder to a height of 8 m in 32 s. Find the power ratingof the mover. I solve... When the mover pushes the box, two equal forces result. Explain why the box moves even though the fo... What forces does a mover need to apply in order to keep the box moving to the right at 1 m/s A painter leans a 15 foot ladder against the side of a house. The top of the ladder touches the hous... The top of a 12 foot long ladder is leaning against a wall with the top of the ladder 8 feet above t... What is the length of the ladder leaning against a house at a 60-degree angle, with the bottom 7 fee... Have you placed a 39 foot ladder against the top of a building in the bottom of the ladder is 31 fee... What should you do with a ladder or step stool? Responses They are not necessary if you can reac...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use