A courier is delivering a 5-kg package to an office high in a tall building. (a) What upwards force does the courier apply to the package when carrying it horizontally at a constant velocity of 2 m/s into the building? (b) The courier uses the elevator to reach the office. While the elevator (containing the courier who is holding the package) is accelerating
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A courier is delivering a 5-kg package to an office high in a tall building.
(a) What upwards force does the courier apply to the package when carrying it horizontally at a constant velocity of 2 m/s into the building?
(b) The courier uses the elevator to reach the office. While the elevator (containing the courier who is holding the package) is accelerating upwards at 0.11 m/s^2, what upwards force is the courier applying to the package?
(c) When the elevator is traveling upwards at a constant speed of 6 m/s, what upwards force does the courier apply to the package?
(d) In order to stop at the correct floor, the elevator accelerates downwards (decelerates) at a rate of 0.2 m/s^2. What is the upwards force the courier applies to the package during the deceleration?
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