Question

solve these question ? only who can know?

Answer 1

Here is your answer...............

Answer 2

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$\textbf { Your answer is }$-

◆ Mechanics => Mechanics is the branch of physic that deals with the condition of rest or motion of the material objects around us . It is one of the oldest branches of physics .

◆ Dynamics => It is the branch of mechanics that deals with the study of motion of objects taking into consideration the cause of their motion .

The word dynamics comes from a Greek word dynamics which means power .

◆ Point Object => If the position of n object changes by distance much greater than its own size in a reasonable duration of time , then the object may be regarded as a point object.

Example => • Earth can be regarded as a point object for studying it's motion around the sun .

◆ Reference point => A reference point is a point which you took as your siting place while observing the Nature .

◆ Yes , distance is scalar quantity because the quantity which have only magnitude is called scalar quantity and distance have only magnitude .

◆ Yes, Displacement is vector quantity because the quantity which have magnitudes as well as direction is called vector quantity and displacement have magnitude as well as direction .

◆ No, Distance never be negative because magnitude always positive .

◆ Yes , Displacement can be negative because direction may be negative or not .

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