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## Answers

__universal gravitation constant (G)__

*1. it is define as the force of attraction acting between two bodies each of unit mass, whose centers are placed unit distance apart.*

*2. its value is same throughout the universe.*

*3. it is a scalar quantity.*

*4. its value does not depends upon the nature and the size of the bodies.*

*5. Dimensional formula for G is [ M⁻¹L³T⁻²].*

__Acceleration dur to gravity (g)__

*1. it is define as the constant acceleration produced in a body when it falls freely under the effect of gravity.*

*2. its value changes from place to place.*

*3. it is a vector quantity.*

*4. its value depends upon the nature and the size of the bodies.*

*5. Dimensional formula for g is [ M⁰L¹T⁻²]*