To calculate the momentum of the cart, we can use the following formula:
\[ \text{Momentum} (p) = \text{mass} (m) \times \text{velocity} (v) \]
Given:
- Mass (m) = 87 kg
- Velocity (v) = 2.1 m/s
Now, substituting the values into the formula:
\[ p = 87 , \text{kg} \times 2.1 , \text{m/s} \]
Calculating:
\[ p = 182.7 , \text{kg m/s} \]
Thus, the momentum of the cart is:
182.7 kg m/s