The slope of velocity time graph is __________.
A. Acceleration
B. Force
C. Displacement
D. Momentum
When a body undergoes acceleration ___________.
A. Unchanged
B. its velocity increases
C. its speed decreases
D. a force acts upon it
Acceleration is produced due to __________.
A. change in direction of motion
B. change in speed
C. Both A and B
D. None of these