A truck weighing `5xx10^3` kgf and.a cart weighing 500 kgf are moving with the same speed. Compare their kinetic energies.

Explanation

To compare the kinetic energies of the truck and the cart, we will use the formula for kinetic energy, which is given by:

\[ KE = \frac{1}{2} mv^2 \]

where \( KE \) is the kinetic energy, \( m \) is the mass, and \( v \) is the velocity.

### Step 1: Write the formula for the kinetic energy of both the truck and the cart.
- For the truck:
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