- #1
mdavies23
Homework Statement
A teacher rides in an elevator that moves upwards at a constant velocity and holds a set keys 1.00m above the
floor of the elevator. After 2.00 seconds of moving upwards from the ground level of the science building, theteacher releases the keys from their hand. Relative to the ground level of the building, he keys strike the floor of the
elevator at the exact height as where they were released.
(a) Calculate the velocity of the elevator.
(b) Now consider the elevator as traveling downwards at the same constant speed found in part (c). The
keys are again released 1.00m above the floor of the elevator. What is the difference in height (relative toground level) between where the keys are released and where they hit the floor of the elevator?
Homework Equations
Vy=V0 + ay*delta t
The Attempt at a Solution
Key height = 1m
time = 2s
g=-9.8m/s^2
Free fall motion