Check up the only correct statement in the following :-
Check up the only correct statement in the following :-
- A
A body has a constant velocity and still it can have a varying speed.
- B
A body has a constant speed but it can have a varying velocity.
- C
A body having constant speed cannot have any acceleration.
- D
A body in motion under a force acting upon it must always have work done upon it.
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- [AIIMS 1980]
Read each statement below carefully and state, with reasons, if it is true or false :
$(a)$ The net acceleration of a particle in circular motion is always along the radius of the circle towards the centre
$(b)$ The velocity vector of a particle at a point is always along the tangent to the path of the particle at that point
$(c)$ The acceleration vector of a particle in uniform circular motion averaged over one cycle is a null vector
Read each statement below carefully and state, with reasons, if it is true or false :
$(a)$ The net acceleration of a particle in circular motion is always along the radius of the circle towards the centre
$(b)$ The velocity vector of a particle at a point is always along the tangent to the path of the particle at that point
$(c)$ The acceleration vector of a particle in uniform circular motion averaged over one cycle is a null vector