Advantage Box Supply
plaese help!!! PHISICS !!don't get?
an incline plane 5 meters high has one end on the ground and the other on a platform 3 meters high. a man weighing 650 N wishes to push a 900 N up the plane.
1. what is the potential energy of the box at the top of the plane?
2. what force did the man have to supply?
3. the power needed by the man to push a second carton weighing 90 kg to the top in 10 seconds
4. if the object falls, what is its KE just before i t hits the ground?
5. Ideal mechanical Advantage?
6. efficiency=
7. an incline plane 30 meters long rests on a platform 5 m high has the same mechanical advantage as a pulley whose weight is supported by what strands?
8. 1000N weight of pile driver falls45 m what is the KE just before hitting the bottom?
9.How much power is needed to do 100J of work in 2 seconds
idk search it up in googlel or something
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