Sheeesh

Sandra used a ramp to slide a chair onto the back to a truck. She used 10 N of force and the ramp was 4 m long. The chair itself had a mass of 3.6 kg. The distance from the back of the truck straight down to the ground was 1 m. Calculate the efficiency. (...

Bill used a first-class lever to lift a heavy boulder that had a mass of 20 kg. He pushed down on one end of the lever with 40 N force. This end of the lever went down 0.6 m. This resulted in the boulder lifting 0.1 m. Calculate the efficiency of the leve...

I think those are right guys

let me turn turn mine in and check but everybody take good notes and dont just look up the answers

Help plss

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