A runner rounds a circular curve of radius 24.0 m at a constantspeed of 5.50 m/s. What is the magnitude of the runner'scentripetal acceleration?
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A runner moving at a speed of 8.8 m/s rounds a bend with a radius of 25 m. What is the centripetal acceleration of the runner, and what agent exerts force on the runner?
A car rounds a 1.45 km radius circular track at 91 km/h.Find the magnitude of the car's average acceleration after it hascompleted one-fourth of the circle.