The velocity of a particle is given by the equation V = 5t² + 3t where t is measured in minutes and V is measured in m/min. Find the acceleration of the particle at t = 2 min.
Acceleration is first derivative of the velocity: a(t) = V'(t) = 10t + 3, and at t = 2 min acceleration is a(2) = 10*2 + 3 = 23 m/min^2.