Grocery cart force question?

Question

In a grocery store, you push a 15.5 kg shopping cart with a force of 10.0 N. If the cart starts at rest, how far does it move in 3.00 s?

Answer 1

F = MA

F = 10

M = 15.5

Solve for A

X = Xo + VoT + ½AT^2

Xo = 0

Vo = 0

A from above

T = 3s

Solve for X