draw schematic v-t graph for an object (a) moving with uniform acceleration. (b) moving with uniform velocity.
Answers
Answer:
ACCELERATION FROM VELOCITY-TIME GRAPH - RESULT
concept
Acceleration of a particle is equal to the slope of a velocity-time graph.
a=
t
2
−t
1
v
2
−v
1
In the given graph,
a=
4−2
40−20
=10 m/s
2
Acceleration may be positive, negative or zero as it is a vector quantity.
VELOCITY-TIME GRAPH - DEFINITION
concept
The Velocity Time Graph: Velocity-time graph is a plot between Velocity and Time. It shows the Motion of the object that moves in a Straight Line. Magnitude of Velocity at a given instant is equal to its Instantaneous Speed. It is drawn for 1-D motion only and can take both positive and negative values.
In case where the acceleration is zero, tthe slope is zero ( horizontal line). If the acceleration is positive, then the slope is positive (an upward sloping line).