Question

The acceleration-time graph of a body being a straight line parallel to the time axis on the negative acceleration axis implies

• A. that the velocity of the body decreases at a constant rate
• B. that the velocity of the body increases at a constant rate
• C. that the velocity of the body is constant and is negative
• D. that the body is at rest with some negative displacement

Answer 1

Answer: (A)

that the velocity of the body decreases at a constant rate

Negative acceleration axis indicates retardation.
And the straight line graph parallel to the time axis indicates constant retardation.
So, velocity of the body decreases at a constant rate.