Why the direction of motion of a particle is given by its velocity and not by acceleration?

A particle moving along a straight line reverses its direction of motion once. What can we say about the nature of its acceleration?

If the instantaneous velocity of a particle is zero will its instantaneous acceleration be necessarily zero?

Discuss the motion of a charged particle when subjected to a uniform magnetic field when The direction of motion of charged particle is perpendicular to the magnetic field?

A particle moving along a straight line path reverses its direction of motion twice. What can we say about the nature of its acceleration?

Discuss the motion of a charged particle when subjected to a uniform magnetic field when The direction of motion of the charged particle makes an angle with the direction of magnetic field?

What is the acceleration of a particle moving with a uniform velocity?

A particle is in linear simple harmonic motion between two points, A and B, 10 cm apart. Take the direction from A to B as the positive direction and give the signs of velocity, acceleration and force on the particle when it is at the end A,

A particle is in linear simple harmonic motion between two points, A and B, 10 cm apart. Take the direction from A to B as the positive direction and give the signs of velocity, acceleration and force on the particle when it is at the end B,