# Physics

A pole AB of length 10m weighs 800N and has its centre of gravity 4m from the end A, and lies on horizontal ground. The least vertical force required to lift its end B is?

1. 👍 0
2. 👎 0
3. 👁 43
1. f * 10 m = 800 N * 4 m

1. 👍 0
2. 👎 0
posted by R_scott

## Similar Questions

1. ### Physics

1. Crane with a weight on the hook of it. Find the upward force of the rear wheels given the centre of gravity a. Length of arm of crane (30m), weight of object on hook (in N), height (3.5m), length of crane (10m) 2 the centre of

asked by Alex on February 23, 2019
2. ### physics

A pole AB of length 10m and weight 600N has its centre of gravity 4m from the end A, and lies on horizontal fround.calculate the force required to begin to lift the end.why would this force applied at the end A,not be sufficient

asked by benjieo on June 12, 2014
3. ### physics(moment/equilibrium)

A pole AB of length 10m and weight 600N has its centre of gravity 4m from the end A,and lies on horizontal ground. Calculate the force required to beging tto lift the end. Why would this force applied at the end A not be

asked by benjieo on June 12, 2014
4. ### physics

A pole AB of length 10m and weight 600N has its centre of gravity 4m from the end A,and lies on horizontal ground. Calculate the force required to beging tto lift the end. Why would this force applied at the end A not be

asked by benjieo on June 12, 2014
5. ### Maths

A perfectly cylindrical container standing upright with a top and bottom(an oil drum or coke can for example) of area A has an empty mass of M and a height of H. It is filled with a liquid of uniform density(p)up to the height of

asked by Stephen on April 28, 2012
6. ### math

A perfectly cylindrical container standing upright with a top and bottom (an oil drum or coke can for example) has an empty mass of M and a height of H. It is filled with a liquid of uniform density of variable mass m up to height

asked by Karl Haxell on May 17, 2011
7. ### Engineering Maths

A perfectly cylindrical container standing upright with a top and bottom (an oil drum or coke can for example) has an empty mass of M and a height of H. It is filled with a liquid of uniform density of variable mass m up to height

asked by Karl Haxell on May 17, 2011
8. ### Maths

A flay pole is placed at the top of a tower.the angle of elevation of the bottom and top of the flay pole from a point on the ground 10M away and 40 degrees and 50degrees respectively.find the length of the flay pole.

asked by Patrick on March 6, 2016
9. ### Physic

A uniform plank of length 3 m is supported by two wooden trestles L and M as shown in the diagram above. L exerts a force of 80n upwards and M a force of 160N upwards. M is O.5m from the centre of gravity of the plank. calculate

asked by juanita on February 26, 2017
10. ### maths

a rope 10m long from the top of a vertical pole to a point on the ground makes an angle of 23 degrees with the pole. how high is the pole?

asked by Nazneen on May 1, 2019
11. ### maths

from a point P on a level ground and directly west of a pole,the angle of elevation from the top of the pole is 045 and from point Q east of the pole the angle of elevation of the pole the angle of elevation of the top of the pole

asked by bearing on July 15, 2016

More Similar Questions