school
Acemy

Spring Forces

AP Physics 1· difficulty 2/5

The cable of the elevator above snaps and the cabin falls freely. What does the scale now read?

  • A

    600 N600~\text{N}

  • B

    300 N300~\text{N}

  • C

    60 N60~\text{N}

  • D

    0 N0~\text{N}

    check_circle

Explanation

In free fall a=−ga = -g, giving N=m(g+a)=m(g−g)=0 NN = m(g + a) = m(g - g) = 0~\text{N} — the familiar "weightlessness" result.

Want 10 more like this — adaptive to your weak spots?

Practice 10 like thisarrow_forwardPredict my AP score

Related questions

auto_awesomeAll Toolsquestion_answerHomework Q&Amenu_bookAP & SAT PreptimelineLearn Mode