Draw a v t graph to show (a) an object is in uniform motion (b) an object is in uniform accelerated motion (c) an object is in uniform retarded motion and write the nature of the graph.
Answers
a) During uniform motion the acceleration of the body is 0 therefore the velocity time graph for a uniform motion is a graph line parallel to the time axis where slope (i.e acceleration) = 0
b) During uniformly accelerated motion the graph is a straight line passing through the origin with a constant slope.
c) During uniformly retarded motion the graph is a straight line downwards which shows decreasing velocity at a uniform rate.
Graphs are in Attachment....!!!
Explanation:
1) Uniform speed :-
■■ ⇨ In uniform speed the velocity of a body is uniform through out the time it perform a displacement between it's initial and final position.
So a speed time graph for a body moving with a constant speed is straight and parallal with the time axis.
2) Uniform Acceleration :-
■■⇨In Constant or uniform acceleration a body moves with a uniform acceleration, it's speed changes in equal amount in equal interval of time. In other word the speed become directly proportional with the time. ✔
In a speed time graph for a body moves in uniform accelaration will be straight start from origin and moves straight forward or upwards with an angle
* theta *(●)✔
3) Uniform retardation :-
■■⇨In uniform or constant retardation a body performs a constant negative acceleration or retardation through out the total displacement from initial position to final position.
The speed time graph of uniform retardation the line moves downward at angle
*theta *(●)✔
