Question

A woman of mass 55.2 kg is standing in an elevator. If the elevator floor pushes up on her feet with a force of 392 N, what is the acceleration of the elevator? Assume the +y-direction to be

up. Enter a negative answer if the acceleration is downward and a positive answer if the acceleration is upward.

Answer 1

Answer: Acceleration= +7.1m/s^2

Explanation: Force= Mass × acceleration

putting in formula

392= 55.2×a

a=7.1 m/s^2

since force is pushing upward acceleration will also be upward hence positive.