jamie and susan are carying 10kg boxes to a truck. the back of the truck is 1.5 meters off the ground. jamie lifs the box straight up and puts it in the truck.susan drags her box up a frictionless 10m long ramp. how much force does jamie have to lift with? how much force does susan have to pull with?
plez help i am haveing trouble with this prob... if you can solve it plez show a little work
2007-01-04 09:42:50 · 2 answers · asked by agg1230 1 in Science & Mathematics ➔ Physics
set the two equations equal to each other, because it takes just as much force to lift something as to drag it
2007-01-04 10:05:45 · answer #1 · answered by sur2124 4 · 0⤊ 0⤋
Jamie has to exert a force to counteract the pull of gravity on his 10 Kg. load. Susan slides the box up the 10m. hypotenuse of a right triangle. She still will do the same amount of work (1.5m. x 10kg.) as Jamie. I THINK: To input 15 kg.-m. of work over a distance of 10 m. means a force of 1.5.... what,... newtons?
2007-01-04 18:15:39 · answer #2 · answered by Richard S 6 · 0⤊ 0⤋