A paper weight is dropped from the roof of a block of multi storey flats. each storey being 3 metre high. it passes the ceiling of the 20th storey at 30m/s. if g=10m/s2, how many storeys does the flat have?

Question

Physics

Felicity Miles

26 December, 19:54

A paper weight is dropped from the roof of a block of multi storey flats. each storey being 3 metre high. it passes the ceiling of the 20th storey at 30m/s. if g=10m/s2, how many storeys does the flat have?

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Jeffery Hanna · Answer 1

23. Since gravity accelerates at 10m/s^2 in this scenario, the 1st floor (V1) will be 10m/s, V2 will be 20 m/s and V3 will be 30 m/s.

By the way, gravity accelerates at 9.8 m/s^2, not 10 m/s^2