1. The problem statement, all variables and given/known data The position of a particle moving along the x axis varies in time according to the expression x = 3t 2, where x is in meters and t is in seconds. Evaluate its position at the following times. ( a) t = 2.30 s (b) t = 2.30 s + Δt (c) Evaluate the limit of Δx/Δt as Δt approaches zero to find the velocity at t = 2.30 s. m/s 2. Relevant equations Listed above. 3. The attempt at a solution Well for part 'a)', I plugged in the given time (2.30) and got 15.87 meters. At part 'b)' is where I get stumped. What would you do to find delta t? Thanks.