Correct Answer - Option 2 : uniform acceleration
CONCEPT:
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Velocity: The rate of change of displacement is called velocity.
- The slope of the position-time graph or displacement - time graph gives the velocity.
Velocity (v) = dx/dt
Where x is displacement and t is time
-
Acceleration: The rate of change in velocity is called acceleration.
- The slope of a velocity-time graph gives the acceleration.
Acceleration (a) = dv/dt
- Anything (that is velocity, acceleration, or speed) which is constant is called uniform (uniform velocity, uniform acceleration, or uniform speed).
EXPLANATION:
Given that:
v ∝ t
v = kt
where k is a constant.
Acceleration (a) = dv/dt = k = constant
Hence the object has uniform acceleration.