16. Draw a free body diagram for the following situation. Mrs. Franks tries to take inventory of her lab equipment every year. IfMrs. Franks pushes a 9.7 kg box across her floor by exerting an 85 N force, but the force of friction between the tile and the cardboard box is 80N. What is the acceleration of the box once Mrs. Franks gets it moving? (show work)

multiply 2kg by latent heat of vap

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.