Examples from day to day life to illustrate positive, negative and zero acceleration. Also draw a graph representing them! Plz solve soon.
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Examples of positive acceleration :
(1)Pushing a book on a table to some distance
(2)Lifting a bucket of water
(3)Pulling a box on the floor to another place
(4)Climbing a tree
(5)Kicking a football
Examples of negative acceleration :
(1)The work done by the frictional force, when we push the book to a distance.
(2)The work done by the gravitational force, when we are lifting a bucket of water from the well.
(3)The work done by the gravitational force, when we are climbing on a tree.
(4)The work done by the frictional force of air, when a ball is falling downwards.
(5)The work done by the buoyant force, when a coin is sinking.
Examples of zero acceleration :
(1)If we push a wall, the wall remains unaltered. The work done by us on the wall is zero
(2)If a person is walking horizontally with a load on his head, then the work done by the person against gravity is zero.
(3)The work done against gravity in moving a book horizontally on a table is zero.
(4)If we try to move a heavy box, and the box is not at all moving, then the work done by us will be zero.
(5)The centripetal force acting on an object under circular motion does zero work on the object.
(1)Pushing a book on a table to some distance
(2)Lifting a bucket of water
(3)Pulling a box on the floor to another place
(4)Climbing a tree
(5)Kicking a football
Examples of negative acceleration :
(1)The work done by the frictional force, when we push the book to a distance.
(2)The work done by the gravitational force, when we are lifting a bucket of water from the well.
(3)The work done by the gravitational force, when we are climbing on a tree.
(4)The work done by the frictional force of air, when a ball is falling downwards.
(5)The work done by the buoyant force, when a coin is sinking.
Examples of zero acceleration :
(1)If we push a wall, the wall remains unaltered. The work done by us on the wall is zero
(2)If a person is walking horizontally with a load on his head, then the work done by the person against gravity is zero.
(3)The work done against gravity in moving a book horizontally on a table is zero.
(4)If we try to move a heavy box, and the box is not at all moving, then the work done by us will be zero.
(5)The centripetal force acting on an object under circular motion does zero work on the object.
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