Can anyone help with this? Thank you!

1) When a 1.244kg cart passes the 10.0cm mark, the speed is 0.05m/s: -How would you calculate/predict the speed of the cart when it passes the 300m mark? Position (cm 2) A same constant force acts on two carts: The first cart has mass m, and the second cart has a mass of M=2m. Both carts start from rest, with the finish line being 600m from the start and both run on the same straight track. Do both carts finish at the same time, or which one finishes first? -Do both carts have the same kinetic energy, or which one has a greater one