Question

Can an object be accelerated if
i) its speed is constant
ii) its velocity is constant

Answer 1

While the speed of the object is constant, its velocity is changing. Velocity, being a vector, has a constant magnitude but a changing direction. The direction is always directed tangent to the circle and as the object turns the circle, the tangent line is always pointing in a new direction.

Answer 2

Answer:

the object can be accelarated only if any external force changes the velocity of that object otherwise there is no chance