The addition of two washers to the string increases the car's acceleration.
When two washers are added to the string connected to the car, it influences the car's acceleration. The acceleration of the car is determined by the forces acting on it, and adding mass to the system (in this case, the washers) can impact these forces. If the force applied by the string remains constant, adding mass would result in a greater force being exerted on the car according to Newton's second law (F=ma), thereby increasing its acceleration. However, the specific details would depend on the dynamics of the system and the forces involved.
In conclusion, while adding two washers to the string generally tends to increase the car's acceleration, the precise impact depends on a variety of factors, including the mass of the washers, the force applied by the string, and the influence of other forces acting on the system. Understanding these interactions provides insight into the complex relationship between mass, force, and acceleration in this specific scenario.
Complete ques:
What is the effect on the car's acceleration when two washers are added to the string?