If r(t) , v(t) and a(t) are the position, velocity, and acceleration of a moving particle at any time t, respectively, and if the speed at any time t is a constant , then the velocity and acceleration vectors are perpendicular.

Question

Quizplus · Accepted Answer

When the speed of a particle is constant, the direction of the velocity may change but not its magnitude. The acceleration is responsible for this change in direction, implying it acts perpendicular to the velocity to avoid changing the speed.

If R(t) , V(t) and A(t) Are the Position, Velocity