Question

What can you say about the nature of motion of a body if its displacement-time graph is a straight line inclined to the time axis with an obtuse angle ?

• A. motion with negative uniform velocity
• B. motion with negative non-uniform velocity
• C. motion with positive uniform velocity
• D. motion with positive non-uniform velocity

Answer 1

The correct option is A motion with negative uniform velocity

If displacement-time graph is a straight line inclined to the time axis with an obtuse angle, that means gradient of the curve or the velocity of the body is negative because slope of the curve = $tan\theta$ and ${90}^o<\theta <{180}^o$