Represent the variation of distance with time for an object under free fall.

Define free fall.

Define free fall .

What are free fall

What is free fall ?

The figure shows the speed as a function of time for an object in free fall near the surface of the earth. The object was dropped from rest in a long evacuated cylinder . If the same object were released in air, the magnitude of its acceleration would begin at the free-fall value, but it would decrease continuously is zero as the object continued to fall. For which one of the choices given does the solid line best represent the speed of the object as a function of time when it is dropped from rest in air ? Note: The dashed line shows the free-fall under vacuum graph for comparison.

Let y=A sin (omegat-kx) represent the variation of distance y of a particle with time t. Which of the following is not meaningful?

The figure shows the speed as a function of time for an object in free fall near the surface of the earth. The object was dropped from rest in a long evacuated cylinder . What is the speed of the object 3.0 seconds after it is dropped ?

The figure shows the speed as a function of time for an object in free fall near the surface of the earth. The object was dropped from rest in a long evacuated cylinder . What is the numerical value of the slope of the line ?