Question

A car is moving on a straight road with the constant speed of 40 m/sec , then
1. acceleration of the car is zero
2. the car is moving with variable acceleration
3. motion of the car is non uniform
4. acceleration of the car is constant​

Answer 1

$\huge \boxed { \bold{Answer}}$

1.Accleleration of the car is zero.

Because car is moving with a constant velocity and also no force is applied so car will move with constant velocity 40m/s forever and hence accleration is zero.