a) Can an object accelerate if its SPEED is constant?
b) Can ab object accelerate if its VELOCITY is constant?
an object can accelerate if its speed is constant because it can change its direction and maintain a constant speed
it cannot accelerate if its velocity(speed with a direction) is constant
a) No, an object cannot accelerate if its speed is constant. Acceleration is the rate of change of velocity over time. If an object has a constant speed, it means that its velocity is not changing. Since acceleration depends on changes in velocity, if the velocity remains constant, the object's acceleration will be zero.
b) Yes, an object can accelerate even if its velocity is constant. Velocity is a vector quantity that includes both magnitude (speed) and direction. While the magnitude of velocity can remain constant, the direction can change, resulting in a change in velocity and thus acceleration. For example, if an object moves in a circle at a constant speed, its velocity is constant in magnitude but continuously changes direction, resulting in an acceleration towards the center of the circle known as centripetal acceleration.