Question

When the distance travelled by an object is directly proportional to the time, 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

Explanation for the correct option(s):

(B): Constant Speed

Distance:

1. The distance travelled for a moving object is simply the measure of the whole path travelled by the particle.
2. When the body travels equal distances in equal intervals of time or when the distance is directly proportional to the time, the motion is uniform.

Finding the final answer using the speed formula:

1. If the distance is $s$and time is, $t$ then according to the question, $s\propto t$ .
2. Then If we remove the proportionality sign we get, $s=vt$.
3. Then speed $\left(V\right)=\frac{s}{t}$
4. Then we can say, A object is said to be travelling at a constant speed when the distance travelled by the object is directly proportional to the time taken.

Hence, Option (B) Constant speed is the correct option.