# PHYSICS

a metre rule of length AB and mass 100g is suspended on a knife egde. if a mass of 200g is placed at 25cm mark from A at what point will another mass x be suspended from B?

1. 👍
2. 👎
3. 👁
1. 200gX12.5cm=12.5cmXp.

p=200g

1. 👍
2. 👎

## Similar Questions

1. ### Physics

A metre rule is found to be balanced at 48 cm mark when body of mass 60g is suspended at the 6cm mark , the balance point is found to be at 30cm mark.calculate the metre rule the distance of the balance point from the zero end if

2. ### Physics

A uniform half metre rule is freely pivoted at the 15cm Mark and it balanced horizontally when a body of mass 40g is hung from the 2cm Mark. calculate the mass of the rule

3. ### Physics

A uniform meter rule of mass 100g balance at a 40cm mark when a mass x is placed at the 10cm mark.What is x?

4. ### physics

Tension is maintained in a string. The observed wave speed is 21 m/s when the suspended mass is 3.0 kg. a) What is the mass per unit length of the string? (in kg/m) b) What is the wave speed when the suspended mass is 1.6 kg? (in

1. ### physics

a body mass 50g is suspended at the 20cm mark of a uniform meter rule. the meter rule is adjusted on a pivot until it balances horizontally at the 40cm mark. find the mass of the rule?

2. ### Physics

A uniform metre rule AB us balanced on a knife edge which is 55cm from B. If a mass of 10g is hung at P, which is 10cm from A, calculate the mass of the metre rule. Please HELLLLP

3. ### Physics

a uniform metre rule pivoted at R, the 70cm mark. Two forces 0.1 N and 0.4 N are applied at Q, the 60cm mark and S, the 85cm mark. If the metre rule us kept in equilibrium, by the forces, calculate the weight of the metre rule.

4. ### Physics

When a mass of 50g is hung from 5cm mark of a uniform meter rule. The rule balance on a knife edge placed at the 35cm mark . what is the weight of d meter rule? (take g:10ms-2).

1. ### Physics

A knife thrower throws a knife toward a 300-g target that is sliding in her direction at a speed of 2.30 m/s on a horizontal frictionless surface. She throws a 22.5-g knife at the target with a speed of 39.5 m/s. The target is

2. ### physics

a uniform half metre rule is freely pivoted at the 20 cm mark and its balance horizontaly when a body of mass 30g is hung 5cm mark from end calculate the mass of rule

3. ### Physics

A metre rule is found to balance at 51cm mark.When a body of 70g is suspended at the 10cm mark,the balance point is found to be at 25cm mark.Find the mass of the ruler and the distance of the balance point from the zero end,if the

4. ### Physics

The length of a spring increases by 7.2 cm from its relaxed length when a mass of 1.4 kg is hanging in equilibrium from the spring. (a) What is the spring constant? (b) How much elastic potential energy is stored in the spring?