If an object is released in air, the magnitude of its acceleration would begain at the free-fall value, but it would decrease continously to 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 deshed line shows the free-fall under vacuum graph for comparison.

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.

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 ?

Weight of an object in free fall is zero? Why.

When an object is dropped from a height, it accelerates and falls down. Name the force which accelerates the object.

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

An object falls from a height h (hltltR) .the speed of the object when it reaches the ground is

The graph shown the variation with times t of the velocity v of an object . Which one of the following graphs best represents the variation of acceleration a of the object with time t ?