MATHEMATICS · Single correct · AP · Calculus BC · Parametric, Polar, and Vector-Valued Functions · Parametric, Polar, and Vector-Valued Functions
Problem
Consider the curve x(t)=3t2 and y(t)=4t2 for 0≤t≤4. Let S be the total distance traveled by the particle from t=0 to t=4. At what time t=t0 (with 0<t0<4) has the particle traveled exactly 21S?
(a) 3
(b) 22
(c) 2
(d) 42/3