A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 845 N. As the elevator moves up,the scale reading increases to 940N,then decreases back to 845N. The acceleration of gravity is 9.8 m/s^2.

Question

A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 845 N. As the elevator moves up,the scale reading increases to 940N,then decreases back to 845N. The acceleration of gravity is 9.8 m/s^2. 
Find the acceleration of the elevator. Answer in units of m/s^2.

As the elevator approaches the 74th floor, the scale reading drops as low as 789N.
 What is the acceleration of the elevator? Answer in m/s^2

Max · Answer

Hint: A newton is a kilogram per m/s^2. Figure out the mass of the student.

anonymous · Answer

i have the same question and im lost and seeems like theres another 462 people just as lost