# Physics

posted by .

A 30-lb weight is attached to one end of a 6-ft uniform beam whose own weight is 20-lb. Where is the balance point? Thanks in advance.

• Physics -

take moments around end where 30 lb weight is
total force up = 20+30 = 50

50 x = 20 * 3

x = 6/5 = 1.2 ft from end where 30 lb weight is

## Similar Questions

1. ### Physics

A uniform steel beam of length 5.50 m has a weight of 4.50 103 N. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached between the other end of the beam and a point on the …
2. ### Physics

A uniform steel beam of length 5.50 m has a weight of 4.50 103 N. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached between the other end of the beam and a point on the …
3. ### Physics

A uniform steel beam of length 5.50 m has a weight of 4.50 103 N. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached between the other end of the beam and a point on the …
4. ### Physics

A 30-lb weight is attached to one end of a 6-ft uniform beam whose own weight is 20-lb. Where is the balance point of the system?
5. ### physics

A uniform, horizontal beam is 5.00m long and has a weight of 200N. The beam is hinged at one end to a wall. A 600N weight is attached to the order end of the beam. The beam is supported by cable at the end opposite the wall. The cable …
6. ### maths

2. A bar of uniform section is 81.4cm long and weighs 4.45 kg. A weight of 12.8 kg is suspended from one end. The bar weight combination is to be suspended from a cable attached at the balance point. a)Determine how far from the weight …
7. ### Physics

A uniform rod of weight 5N and lenght 1m is pivoted at a point of 20 cm from one of its ends. A weight is hung from the other end so that te rod balances horizontally. What is the value of the weight?
8. ### Physics

A uniform of 100N pipe is use as a lever. When must the fulcrum (supported point) be placed if a 500N weight at one end to balance a 200N weight at the other end?
9. ### Physics

A beam that weighs 10.0 N/m is 2.5m long. It is supported at point a point 0.78 m from one end.?
10. ### Physics

a uniform beam 6.0m long and weighing 4kg rest support p and q place left and right 1.0m of beam of weight from each of the beam weight of mass 10kg and 8kg and are placed near p and q respectively on each of the beam. calculate the …

More Similar Questions