Answer
According to newton's second law
ΣF= ma
As we see the car is moving with constant velocity. Then the net force on the car is ZERO.
Work Step by Step
Newton first law : An object 's velocity vector v remains constant if and only if the net force acting on the object is Zero.
Newton second law : the rate of change of the objects velocity ,that is the objects acceleration is proportional to the net force acting on it and inversely proportional to its mass ,THAT is
ΣF= ma
According to newton's second law
ΣF= ma
As we see the car is moving with constant velocity. Then the net force on the car is ZERO.
