A man of mass m is standing in an elevator. The elevator is accelerating downward at g/k, where k>1 and g is the gravitation acceleration. If the force on the man by the elevator's floof jmg, where j is a constant and k= a/(b+cj), where gcd(|a|,|b|,|c|)=1, what is a+b+c? If k cannot be expressed in this form, say so.

1 answer

mg down
F up
mg - F = m a = m g/k

mg - jmg = (mg/a)(b+cj)

1-j = (b+cj)/a = 1/k

k (1-j) = 1

I do not know what gcd(|a|,|b|,|c|)=1 means so can go no further.
Similar Questions
  1. 3 part question:A 52-kg girl weighs herself by standing on a scale in an elevator. What does the scale read when: a.)the
    1. answers icon 3 answers
    1. answers icon 0 answers
    1. answers icon 3 answers
  2. What is the period of a simple pendulum that is 2.0 m long in each situation?(b) in an elevator accelerating at 3.0 m/s2 upward
    1. answers icon 1 answer
more similar questions