Acceleration refers to a change in velocity, which can either be positive (speeding up) or negative (slowing down). Deceleration specifically refers to a negative acceleration, meaning the object is slowing down.
The formula for deceleration is the change in velocity divided by the change in time. It can be written as a = (vf - vi) / t, where vf is the final velocity, vi is the initial velocity, and t is the time interval.
The mass of an object does not affect its deceleration in AP Physics 1 Kinematics. Deceleration is determined by the force acting on the object, not its mass. However, a heavier object may require more force to decelerate, as described by Newton's second law (F = ma).
Yes, an object can have a negative deceleration, also known as acceleration in the opposite direction. This occurs when an object is slowing down while moving in a negative direction, or speeding up while moving in a positive direction.
Yes, an object can have a constant deceleration in AP Physics 1 Kinematics if the force acting on it is constant. This would result in a linear decrease in velocity over time, as described by the equation vf = vi + at, where vf is the final velocity, vi is the initial velocity, a is the deceleration, and t is the time interval.