The system is released from rest with no slack in the cable and with the spring unstretched. Determine the distance s traveled by the

$3\mathrm{.}8-kg$ cart before it comes to rest $($a$)$ if $m$ approaches zero and $($b$)$ if $m=2\mathrm{.}7kg.$ Assume no mechanical interference and no friction. The

distance $s$ is positive if up the incline, negative if down.

Answers:

$($a$)m=0,s=$

m

$($b$)m=2\mathrm{.}7kg,s=$

i

m