* Change in Speed: The object's speed is decreasing.
* Change in Direction: The object's velocity is a vector quantity, meaning it has both magnitude (speed) and direction. So, a decrease in velocity could also involve a change in direction.
* Force: A force is acting on the object in the opposite direction of its motion, causing the object to slow down. This force could be friction, air resistance, gravity, or an applied force.
* Acceleration: The object is experiencing negative acceleration. This means the acceleration vector points in the opposite direction of the velocity vector.
Examples:
* A car braking to a stop.
* A ball thrown upwards slowing down as it reaches its highest point.
* A boat slowing down due to water resistance.
Note: It's important to distinguish between "speed" and "velocity". Speed is a scalar quantity, meaning it only has magnitude. Velocity is a vector quantity, meaning it has both magnitude and direction. So, a decrease in velocity could mean a decrease in speed, a change in direction, or both.
