Figure P3.8 shows the position curves for two carts, A and \(\mathrm{B}\), moving on parallel tracks along a horizontal surface. The instant when the two carts are at the same distance from their starting point is indicated by point \(P\). Which cart has the greater acceleration at that instant?

Data from Figure P3.8

x(m) 10 86420 cart A cart B it(s) 1 2 3 4 5