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 . What is the numerical value of the slope of the line ?

Suppose that the acceleration of a free fall at the surface of a distant planet was found to be equal to that at the surface of the earth. If the diameter of the planet were twice the diameter of the earth, then the ratio of mean density of the planet to that of the earth would be

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 ?

A block of mass m is kept on the floor of a freely falling lift .During the free fall of the lift, the block is pulled horizontally with a force of F = 5 N, mu_(s) = 0.1 The friction force on the block will be

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.

An ideal gas of molar mass M is contained in a very tall vertical cylindrical vessel in the uniform gravitational field in which the free-fall acceleration equals to T , find the height at which the centre of gravity of the gas is located.

STATEMENT - 1 : A falling skydiver which has reached terminal velocity is considered to be in a state of free fall. STATEMENT - 2 : A ball is thrown upwards and is rising towards its peak. As it rises upwards, it is STATEMENT - 3 : An object in free fall experiences an acceleration which is independent of the mass of the object

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.