Question

A pumpkin was dropped from a balcony of a skyscraper. The pumpkin happened to land on a sidewalk force sensor and the below data was collected.
After collecting all of the pumpkin gore, you determine that the pumpkin was 2.7kg in mass.

a) From what height was the pumpkin dropped?

b) From what floor of the skyscraper was the pumpkin probably dropped?

Answer 1

Answer:

a. Any Height  

b. Any floor other than the ground floor.

Explanation:

For a fallen object

PE(potential Energy) = KE(Kinetic Energy)

therefore  

In this case only a change in form of energy was witnessed.

According to law of conservation of mass, " states that mass can neither be created nor destroyed"

Mass is conserved over time despite change in form, Mass quantity is neither added nor removed.

Since all pumpkin gore was collected and weighed.

At any known height

M_b(mass before drop)=M_a( mass after drop)