A car drives at a constant speed of 3m/s around a circle with radius 20m. What is the centripetal acceleration of the car

Centripetal acceleration is the motion inwards towards the center of a circle. It is given by the square of velocity, divided by the radius of the circular path.

ac = v²/r, where ac is the centripetal acceleration in m/s²

Therefore,

Centripetal acceleration = 3²/20m

= 9/20m

= 0.45 m/s²

Thus, the centripetal acceleration is 0.45 m/s²