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23 Nov 2019
A 29 kg crate rests on a horizontal floor, and a 78 kgperson is standing on the crate.
a) Determine the magnitude of the normal force that the floorexerts on the crate.
b) Determine the magnitude of the normal force that the crateexerts on the person.
A 90.0 kg person stands on a scale in an elevator. What isthe apparent weight in each of the followingsituations?
(a) when the elevator is accelerating upward with an accelerationof 1.20 m/s2
(b) when the elevator is moving upward at a constant speed
(c) when the elevator is accelerating downward with an accelerationof 1.40 m/s2
A 29 kg crate rests on a horizontal floor, and a 78 kgperson is standing on the crate.
a) Determine the magnitude of the normal force that the floorexerts on the crate.
b) Determine the magnitude of the normal force that the crateexerts on the person.
A 90.0 kg person stands on a scale in an elevator. What isthe apparent weight in each of the followingsituations?
(a) when the elevator is accelerating upward with an accelerationof 1.20 m/s2
(b) when the elevator is moving upward at a constant speed
(c) when the elevator is accelerating downward with an accelerationof 1.40 m/s2
Keith LeannonLv2
26 Apr 2019
