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physics Advanced Subsidiary (AS) Level Physics.
 
Solved problems for the chapter:
 

Centre of Gravity

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Detailed solution steps are available at:
 
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Example 1.

Four weights of masses 1 kg, 2 kg, 3 kg, and 4 kg are placed in the x, y coordinate system so that the weights are arranged on the corners of a square with a side length of 1 m. Calculate the coordinates of the centre of gravity.

    
Example 2.

A cylinder with a weight of 600 N and a radius of 0.6 m is to be pulled over a 10 cm high step. The line of action of the force is on the axis of rotation of the cylinder. How much force do we need?

    
3.

A system of two geometric bodies of the same substance and the same thickness joined to each other is shown in the figure below. The first body is a cuboid with a cross-section of 20 cm x 4 cm, and the second is a cylinder with a radius of 6 cm. Calculate the centre of gravity of the system.


A system of two geometric bodies