What is the net force of this object? f air=400n f grav=600n a) 0 nuetons b) 200 nuetons c) 400 nuetons d) 600 nuetons

B) 200 Newtons

Explanation:

We have two forces acting on the object:

- Fgrav = 600 N: this is the force of gravity, which is equal to the weight of the object, which pushes downward

- Fair = 400 N: this is the force due to the air resistance, which is against the direction of motion of the object, so for an object in free fall, its direction is upward

Therefore, we have two forces acting in opposite directions: therefore, the net force is equal to the difference between the two forces:

the answer is a. hope this .

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards