A marble with a mass m of 3.00 g is released from rest in a bottle of syrup. Its terminal speed vt is 1.81 cm/s.
(a) Presuming the resistive force R = bv, what is the value of b (N s/m)?
(b) What is the strength of the resistive force (N) when the marble reaches terminal speed?
(c) How long in milliseconds does it take for it to reach a speed of 0.600vt?