Question

In uniform circular motion, which of the following quantities are constant: speed, instantaneous velocity, centripetal acceleration, the magnitude of the net force?

Answer 1

Answer:

Explanation:

In uniform circular Motion magnitude of velocity is constant but its direction is keep on changing. So Instantaneous velocity is not constant while speed is constant. centripetal acceleration is given by

$a_c=\frac{v^2}{r}$

where v=velocity and r=radius

$a_c$ magnitude remains same but its direction is keep on changing

magnitude of net Force is given by $F=m\frac{v^2}{r}$

as v and r is constant in magnitude therefore F is constant

We can say that speed and Magnitude of force is constant but velocity and centripetal acceleration is constant