If the engine of a car exerts a force of 5000N to move the car forward and the frictional forces exerted on the car total 1500N, what is the car's acceleration?

To solve this problem, we need to use Newton's second law of motion, which states that the acceleration of an object is equal to the net force acting on it divided by its mass. The net force is the difference between the force exerted by the engine and the frictional force.

Here are the steps to solve the problem:

1. Calculate the net force: The net force acting on the car is the force exerted by the engine minus the frictional force. So, Net Force = Engine Force - Frictional Force = 5000N - 1500N = 3500N.

2. Find the acceleration: According to Newton's second law, Acceleration = Net Force / Mass. However, the mass of the car is not given in the problem. Without this information, we cannot calculate the acceleration.

So, we need the mass of the car to calculate the acceleration.