Jill has just gotten out of her car in the grocery store parking lot. The parking lot is on a hill and is tilted 3^\circ. Fifty meters downhill from Jill, a little old lady lets go of a fully loaded shopping cart. The cart, with frictionless wheels, starts to roll straight downhill. Jill immediately starts to sprint after the cart with her top acceleration of 2.0 m/s^2. How far has the cart rolled before Jill catches it? I have no clue about how I should go about answering this problem!!