Question

A stone tied to the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 seconds, what is the magnitude and direction of acceleration of the stone?

Answer 1

\(\frac{88}{25}\) rad s^-1,\(\frac{2π}{T}\) = \(\frac{2πN}{t}\)

a = 991.2  cm s^-2