a car of the mass m kg travels on a straight,level road. the driving force of the engine is 4000N and the total resistance due to air friction and tires on the road is 300N. if the car accelerates at 3m/s2 ,what is the mass m of the car
force=m*a
4000-300=3m/s2*m
m=1233.33kg
To find the mass of the car (m), you can use Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a).
F = m * a
In this case, the driving force of the engine is 4000 N, and the car is accelerating at 3 m/s^2. So we can write,
4000 N = m * 3 m/s^2
Now, rearranging the equation to solve for mass (m),
m = 4000 N / 3 m/s^2
m ≈ 1333.33 kg
Therefore, the mass of the car (m) is approximately 1333.33 kg.