Kinematic equations (aka Equations of uniform motion) can only be used when you have a constant...

The kinematic equations are often used in a situation in which;1 pointthe aceleration varies with timethe velocity is constantin timethe velocity varies in timethe acceleration is constant in time

The constant acceleration equations can be used when …Select one:a.only when gravitational acceleration is known.b.the acceleration does not change for a given condition.c.the acceleration is varying with respect to time.d.you are unable to remember the general equations for displacement, velocity and acceleration.

When the velocity of a body is variable, then :Its speed may be constantIts acceleration may be constantIts average acceleration may be constantAll of the above

Define kinematics

If an object has a constant acceleration, the velocity of the object must:*be zerobe constantcontinually change by the same amount each secondcontinually change by varying amounts each second