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6 Oct 2020
A block of mass m is dropped from the fourth floor of an office building and hits the sidewalk below at speed v. From what floor should the block be dropped to double that impact speed?
(a) The eighth floor
(b) The tenth floor
(c) The twelth floor
(d) The sixteenth floor
A block of mass m is dropped from the fourth floor of an office building and hits the sidewalk below at speed v. From what floor should the block be dropped to double that impact speed?
(a) The eighth floor
(b) The tenth floor
(c) The twelth floor
(d) The sixteenth floor
Anil Kumar G.Lv10
15 Jan 2021