To determine the net force exerted on the car, we can use the following equation:
\[ \text{Net Force} = \text{Force applied} - \text{Force opposing} \]
In this case:
- The force applied by the three individuals pushing the vehicle forward is 625 N (this will be considered negative since it's trying to move the car forward).
- The opposing force holding the vehicle stationary is 600 N (this will be considered positive).
Now, we can plug in the values:
\[ \text{Net Force} = -625 , \text{N} + 600 , \text{N} \]
Calculating this gives:
\[ \text{Net Force} = -625 + 600 = -25 , \text{N} \]
This means the net force is -25 N, indicating that the force opposing their effort is greater, and the vehicle remains stationary.
Thus, the correct response is:
-25N