A person is standing on a scale placed on the floor of an elevator. At time t, the elevator is at rest and the reading on the scale is 500 N. At a later time ty, the person is still standing
on the scale and the reading on the scale is 400 N. Based on the scale readings, which of the following statements about the motion of the elevator could be true at time to?
A.
The elevator is moving upward at constant speed
B.
The elevator is moving upward and slowing down.
C.
The elevator is moving downward at constant speed.
D.
The elevator is moving downward and slowing down,
E.
The elevator is at rest.
Answers: 3
Physics, 22.06.2019 07:30
Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20
Answers: 1
Physics, 22.06.2019 10:20
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A person is standing on a scale placed on the floor of an elevator. At time t, the elevator is at re...
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