Question

pls solve with proper explanation??​

Answer 1

Answer:

3) An object moving with variable speed and constant velocity.

Explanation:

As speed is defined as Distance travelled per unit time and has magnitude only whileVelocity is Displacement per unit time has both magnitude and direction(It is a vector quantity).

Variable speed means its magnitude is changing over time. Because magnitude is changing, thus velocity is bound to change as it is a vector quantity.

So, option 3) is incorrect.