Question

Work is done on an object as you drop it from the second floor of a building to the ground floor. True False.

Answer 1

True, the work is done by the gravitational force on the object being dropped from the second floor of a building.

Step-by-step explanation:

When an object is dropped from the second floor of a building then no force is applied by the person on the object but under the influence of gravity the object experience a force equal to its own weight and travels a displacement from the second floor to the ground.

Hence in this case the work is done by the gravitational force but not by the person dropping the object.

As we know that the work done is given as:

`W=F.s`

where:

F = force on the object getting displaced by a length s

Here:

`F=m.g`

where, m = mass of the object

g = acceleration due to gravity