1 1200kg car is accelerating at 1.6m/s/s.
If the coefficient of friction is .15, what is the force supplied by the engine?
please help! urgent!
To find the force supplied by the engine, we can first calculate the force of friction acting on the car using the equation:
Force of friction = coefficient of friction × normal force
The normal force can be calculated as the product of the car's mass and the acceleration due to gravity:
Normal force = mass × acceleration due to gravity
In this case, the acceleration due to gravity is approximately 9.8 m/s².
So, the normal force = 1200 kg × 9.8 m/s² = 11,760 N
Now, we can find the force of friction:
Force of friction = 0.15 × 11,760 N = 1,764 N
Since the car is accelerating, there is an additional force acting on it in the direction of motion. This force is supplied by the engine and can be calculated using Newton's second law:
Force = mass × acceleration
In this case, the mass is 1200 kg and the acceleration is 1.6 m/s².
So, the force supplied by the engine = 1200 kg × 1.6 m/s² = 1920 N
Therefore, the force supplied by the engine is 1920 N.