Air friction force on falling block · PhysicsBowl 2019 #23
Physics · mechanics
Problem
A 30.0-N block falls straight down from a height of 10.0 m, and strikes the ground with a velocity of 7.00 m/s. What average force of air friction acts on it as it falls?
(A) 22.65 N (B) 45.45 N (C) 75.0 N (D) — N (E) 293 N