Answer:
The net force acting on the car is 3 N.
(d) is correct option.
Step-by-step explanation:
Given that,
Force = 4 N to the right
Friction force = 1 N to the left
We need to calculate the net force acting on the car
According to the question,
When a toy car is pushed across the floor with a force then the normal force applied to the right and the frictional force applied to the left on the car.
Then, the net force = normal force - frictional force
Using formula of net force



Hence, The net force acting on the car is 3 N.