Here's how to solve this problem using Newton's Second Law of Motion:

Newton's Second Law:

* F = m * a

* F = Force (in Newtons)

* m = Mass (in kilograms)

* a = Acceleration (in meters per second squared)

Given:

* Force (F) = 8480 N

* Acceleration (a) = 26.5 m/s²

To find:

* Mass (m)

Solution:

1. Rearrange the formula to solve for mass (m):

m = F / a

2. Substitute the given values:

m = 8480 N / 26.5 m/s²

3. Calculate the mass:

m = 320 kg

Therefore, the mass of the cart is 320 kg.