In order to understand the possible cause of a 'right side stomach pain', it may be helpful to know the organs and structures that exist in this region of the body. Diseases, infections, or irritation of any of these organs will lead to a right side abdominal pain.
At that one instant, its velocity is zero, even though its acceleration is still 9.8 m/secÂ². But velocity cannot REMAIN at zero for any length of time if the acceleration is nonzero.
Answer is NO. If I am walking along a road as I normally do at a constant velocity of 2.5m/s. my velocity is constant, but not zero, and my acceleration is zero. Like wise if I drive my car as I usually do along the highway at a constant velocity of 15m/s, My acceleration is zero. But my velocity is not zero. The converse: In free flight, the acceleration of any object is always 9.81m/sÂ² downwards. It never changes. If I throw a ball up into the air at its highest altitude, as it changes from going up to coming down, the velocity is zero, but the acceleration downwards due to gravity is still as it always is , 9.81m/sÂ³.