The train moves along a curve with a radius of 250 m at a speed of 36 km / h. What is its centripetal acceleration equal to?

To determine the desired centripetal acceleration of a given train, we use the formula: ac = V ^ 2 / R, where V is the speed of the train at the curve (V = 36 km / h, in SI V = 10 m / s); R – radius of curvature (R = 250 m).

Let’s make a calculation: ac = V ^ 2 / R = 10 ^ 2/250 = 0.4 m / s2.

Answer: At the rounding, the given train had a centripetal acceleration equal to 0.4 m / s2.