Calculating centripetal acceleration
When a chainsaw is in operation, the chain moves with a linear speed of v=6.0m/s. At the end of the saw, the chain follows a semicircular path with a radius of r=0.049m.
I thought the formula for centripetal acceleration was v^2/r, but apparently that isn't it. Am I unable to use linear speed in the centripetal accel formula?
