# SCIENCE!!

posted by .

what is a fulcrum, the effort and the load? also what is a Class 1 lever, Class 2 lever, and Class 3 lever? plz helpp! thanks:)

## Similar Questions

1. ### physics

3. A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever?
2. ### physics

A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever?
3. ### science

A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever?
4. ### Science

A lever has a 9-N load 1.5m from the fulcrum. Where should a 0.5N effort force be applied to balance the load?
5. ### Physics

A force of 60 N is exerted on one end of a 1.0-m-long lever. The other end of the lever is attached to a rotating rod that is perpendicular to the lever. By pushing down on the end of the lever, you can rotate the rod. If the force …
6. ### Science (simple machines)

The plank is 3.6 metres long. It is being used as a lever to lift a 40-kilogram box. This represents a load of 400 newtons. (a) If the fulcrum were placed in the centre of the plank, what downward effort would the man on the right …
7. ### physics

If a 100 kg adult sits on a first class lever 2 meters away from the axis of rotation...how far back do I need to sit (145 lbs) to balance the lever?
8. ### physics

A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.00 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is the …
9. ### physics

Find the force (in newton) required to lift a mass of 26 kg load with a wheelbarrow (2nd class lever) with the load at 0.75 m from the fulcrum and being lifted at 1.7 m from the fulcrum, assuming ideal conditions.
10. ### Physical science

If you use a 29m second-class lever to lift a 1000 N load exactly in the middle of the lever, and you lift the lever 1.5m high, how high do you lift the load?

More Similar Questions