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

Explanation

To compare the kinetic energies of a truck and a cart moving at the same speed, we can follow these steps:

### Step 1: Identify the weights of the truck and the cart.
- Weight of the truck, \( W_{\text{truck}} = 5 \times 10^3 \) kgf
- Weight of the cart, \( W_{\text{cart}} = 500 \) kgf

### Step 2: Convert the weights to mass.
Since weight (in kgf) can be converted to mass (in kg) by using the relation \( 1 \text{ kgf} = 9.81 \text{ N} \) and \( g \approx 9.81 \text{ m/s}^2 \):
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