An object undergoes uniformly accelerated motion from point x¹ = 7m at time t¹ = 3 s to point x² = 46 m at time t² = 8s. (The direction of motion of the object does not change.)

(a) If the magnitude of the instantaneous velocity at t¹ is v¹ = 2 m/s, what is the instantaneous velocity v² at time t²?

(b) Determine the magnitude of the instantaneous acceleration of the object at time t².