short notes of chapter = Gravitation
Answers
Gravitation : Chapter Notes. The Universal law of Gravitation states that any two bodies having mass attract each other with force directly proportional to the product of their mass and inversely proportional to the square of distance between them. The force acts along the line joining the centres of the objects.
Answer---»»➷
※ According to the law of gravitation the earth attracts each object around its towards its centre.The force with which the earth attracts a body is called the force due to graity on the body. It always acts vertically downwards at the centre of gravity of the body.
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☆ Gravitational Unit
◆ SI unit is kilogram-metre (kg-m).
◆ It is the gravitational unit of work in SI like joule is the absolute unit of work in SI.
◆ Work done is said to be one kg-m.
◆ When a force of 1 kgf moves a body
through a distance of 1 m in the direction
of the applied force.
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