Answer the following:
 
Suggest examples that match the given situations:

(a) an object that has constant acceleration but momentarily no velocity

(b) an object moving in a fixed direction with acceleration acting sideways (perpendicular) to its motion
Answer variants:
An object at rest with zero acceleration
An object tossed upward into the air
An object accelerating in a circular trajectory
An object moving in a straight line with acceleration opposite to motion
Example:
 
Case - (a) -
Case - (b) -