A car of mass 1000 kg is traveling at a constant 25.0 m/sec along a straight, level highway. There is a force of thrust acting on it in the forward direction (the direction the car is moving) of 3000 N. There are drag forces and forces of rolling friction opposing the motion of the car (acting in the direction against its motion). The rolling friction is 600 N. What is the magnitude of the drag force?
thrust-rollingfriction-drag= mass*acceleration
so acceleration is zero. figure then drag
To find the magnitude of the drag force, we first need to calculate the net force acting on the car. The net force is the sum of all the forces acting on the car.
The force of thrust is acting in the forward direction and has a magnitude of 3000 N.
The force of rolling friction is acting against the motion of the car and has a magnitude of 600 N.
Since the car is traveling at a constant speed, the net force acting on the car must be zero. This means that the magnitude of the net force is equal to the sum of the magnitudes of the opposing forces.
Therefore, we can write:
Net force = Force of thrust - Force of rolling friction - Drag force
Since the net force is zero, we have:
0 = 3000 N - 600 N - Drag force
To solve for the magnitude of the drag force, we can rearrange the equation:
Drag force = 3000 N - 600 N - 0
Drag force = 2400 N
Therefore, the magnitude of the drag force is 2400 N.