Josh is in an elevator, and standing on a scale which reads in Newtons. With the
elevator at rest, the scale reads 750 N. The elevator then starts to speed up, and the
scale reads 700 N.
a)
Draw a free-body diagram for Josh. Label each force, and list the agent that
causes it.
b)
Which direction the elevator is moving? Explain.
c)
How far has is the elevator moved in the 2.0 sec after it starts (from rest)?

Question

Josh is in an elevator, and standing on a scale which reads in Newtons. With the
elevator at rest, the scale reads 750 N. The elevator then starts to speed up, and the
scale reads 700 N.
a)
Draw a free-body diagram for Josh. Label each force, and list the agent that
causes it.
b)
Which direction the elevator is moving? Explain.
c)
How far has is the elevator moved in the 2.0 sec after it starts (from rest)?

anonymous · Answer

I know A and B i just need help with part C

anonymous · Answer

can use the formula in Freely Falling Bodies where the height H(t)...$$H(t)=v_ot\pm\frac{1}{2}gt^2$$g is the gravitational acceleration, 9.8 m/sec^2
$v_o$ is the initial velocity or the start velocity
t is the time involved

Just plug-in given values...