During a performance of Swan Lake there are a possible 14 dancers on stage at one time. The stage has been built to withstand a pressure of 30,000,000Nm2. A ballet dancer does a pirouette on the tip of his toe. If all 14 dancers pirouetted at the same time would the stage withstand the pressure exerted? Use all the information given to explain your answer.

12000j is work done

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.