velocity time graph for motion of an object in a straight path is a straight line parallel to time Axis
(a) identify the nature of motion of the body
(b) find the acceleration of the body
(c) draw the shape of distance time graph for this type of motion
Answers
A.. MOTION IS UNIFORM AND VELOCITY WOULD NOT VARY OR ALTER
B.....ACCELERATION WOULD BE ZERO..
C.....DISTANCE TIME GRAPH WOULD BE A STARAIGHT LINE NON PARALLEL TO TIME AXIS AS IN FIGURE
Answer:
(a) The velocity-time graph of an object in a straight path is a straight line parallel to the x-axis (time axis).
(b) Zero acceleration
(c) Distance-time graph for uniform motion will be a straight line.
Explanation:
Velocity-time graph for the motion of an object in a straight path is a straight line parallel to the time axis.
Fig shown:
(a) Since there is no acceleration, the body's motion will be constant or uniform.
When a body's velocity is constant, neither its speed nor its direction are affected by changes in the passage of time. There is therefore no or zero acceleration.
A straight line parallel to the x-axis represents the velocity-time graph of an object travelling in a straight line (time axis).
(b) We know that, acceleration is the rate of change of velocity. Here, from the graph we can see that velocity is not changing, remains constant. Hence, the acceleration will be zero.
(c) The following describes the structure of the distance-time graph for this kind of motion (uniform motion):
Uniform motion- A body is said to be in uniform motion if it travels equal distances in equal intervals of time, no matter how small these time intervals may be. In other words, the distance travelled is directly proportional to time. Thus, a distance-time graph for uniform motion will be a straight line.
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