The discussion focuses on calculating the radial acceleration and tension in a cord for a mass moving in a circular path. Given a mass of 0.51 kg, a cord length of 0.52 m, and a speed of 2.1π m/s, the radial acceleration can be determined using the formula aR = v²/r. The tension in the cord can also be calculated based on the radial acceleration. The relationship between radial acceleration and centripetal acceleration is emphasized as they are equivalent.
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vwillis said:Homework Statement
A small body of mass 0.51 kg is attached by a 0.52 m long cord to a pin set into the surface of a frictionless table top. The body moves in a circle on the horizontal surface with a speed of 2.1π m/s.
(a) What is the magnitude of the radial acceleration of the body?
m/s2
(b) What is the tension in the cord?