An object experiences a net zero external unbalanced force. Is it possible for the object to be travelling with a non-zero velocity? If yes, state the conditions that must be placed on the magnitude and direction of the velocity. If no, provide a reason.

Give one example when the velocity of an object changes at a constant rate both in magnitude and direction.

Is it possible for a uniformly accelerating object to change its direction of velocity ?

Two objects A and B are moving along the directions as shown in (Fig. 5.77). Find the magnitude and direction of the relative velocity of B w.r.t. A . ,

When is the average speed of an object equal to the magnitude of its average velocity ? Give reason also.

Draw position-time graphs for two objects having zero relative velocity.

Under what conditions (s) is the magnitude of average velocity of an object equal to its average speed ?

Is there any directional relation between the net force on an object and the object's velocity ? If so,what is that relation ?

Assertion: In projectile motion, the acceleration is constant in both magnitude and direction but the velocity changes in both magnitude and direction. Reason: When a force or accelration is acting in an oblique direction to the direction of velocity then both magnitude and direction of the velocity may be changed.