posted by JTC .
A cart of mass 1.4 kg is attached to a horizontal spring with stiﬀness 44.4545 N/m and
is able to move horizontally without friction.
The cart is then acted on by a sinusoidal driving force with ω = 4.9 Hz and an amplitude of 1.74532 N.
What is the amplitude of the cart’s horizontal motion under the eﬀects of the driving force?
Answer in units of m