This is a classic introductory physics problem. Basically ... Now suppose I want to find the acceleration of the cart after it is let go. The string that attaches the two carts does two things.

The new feature also provides solutions to word problems. For instance, the solver can explain high school physics concepts like finding the average acceleration using the equation “vf= vi + at.” ...

For the sake of this physics problem, let's make some assumptions (or guesses if you like). Let me start with a graph. This shows the horizontal acceleration of the pod as a function of time.