Question

A 65 kg woman is inside an elevator. (A) Calculate her apparent weight (normal force) in Newtons if the elevator moves at constant speed of 10 m/s downward. Be sure to keep 3 significant digits.

Answer 1

W = 637 N

Step-by-step explanation:

For this exercise we will use Newton's second law

F -W = m a

where F is the force, m the mass and the acceleration

in this case the force is the weight of the body and as the elevator goes at constant speed the acceleration is zero

F = W

a = 0

F = W

W = m g

W = 65 9.8

W = 637 N