Physics Force & Motion SZABMU 2024
PMDC Verified Question 2 of 137
The slope of velocity-time graph gradually decreases, then the body is said to be moving with
A
Negative acceleration
B
Positive acceleration
C
Uniform velocity
D
Variable acceleration
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Variable acceleration
Concept:

The slope of a velocity-time graph is identically the acceleration.

Solution:

  • If the slope is "gradually decreasing," it means the value of the slope is changing at every point.


  • Because slope = acceleration, a changing slope strictly dictates a changing, non-constant acceleration.


  • Therefore, the body is moving with variable acceleration.


Why other options are incorrect:

"Negative acceleration" just tells you the sign of a constant slope. "Uniform velocity" would mean zero acceleration. Only "Variable" directly captures the changing nature of the slope.

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