Question

When the distance covered by a moving object is directly proportional to the time duration, it is said to travel with :

• A. Zero velocity
• B. Constant speed
• C. Constant acceleration
• D. Uniform velocity

Answer 1

The correct option is B Constant speed

Distance is directly proportional to time
$s=ct$
Differentiating with respect to time
$\frac{ds}{dt}=c$
$v=c$
Therefore speed is constant.