A of car of mass 2000 kg has a force forward due to the engine of 4500N and experiences an air resistance of 1500N. IF we ignore the friction with the road, what is the acceleration of this car?
thanx :)
F = 4500 - 1500 = 3000 N
a = F/m = 3000/2000 = 1.5 m/s^2
To calculate the acceleration of the car, we need to use Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
The net force acting on the car is the difference between the force exerted by the engine (4500N) and the air resistance (1500N). Since the air resistance opposes the motion of the car, we subtract it from the force due to the engine.
Net force = Force due to the engine - Air resistance
Net force = 4500N - 1500N
Net force = 3000N
Now we can calculate the acceleration using Newton's second law:
acceleration = net force / mass
acceleration = 3000N / 2000kg
acceleration = 1.5 m/s^2
Therefore, the acceleration of the car is 1.5 meters per second squared.