As a $$500-\backslash$mathrm$\{$kg$\}$$ Moon lander is descending toward the surface, its thruster fires an upward force. At a height of $50$ m $,$ the lander's velocity is $$8\mathrm{.}5\backslash$mathrm$\{$~m$\}/\backslash$mathrm$\{$s$\}$$ downward. At a height of $5$ m $,$ its velocity is $$0\mathrm{.}5\backslash$mathrm$\{$~m$\}/\backslash$mathrm$\{$s$\}$$ downward. The Moon's gravitational field strength near its surface is $1\mathrm{.}6$ $$\backslash$mathrm$\{$N$\}/\backslash$mathrm$\{$kg$\}$$$.$ Assume the mass of the lander remains nearty constant during the process. Part $1$ Part $2$ What is the time interval during which this displacement occurs? $\backslash [\backslash$Delta t$=\backslash$text $\{$ i $\}\backslash$quad s $\backslash ]$ Save for Later Attempts: $0$ of $6$ used Submit Answer Using multiple attempts will impact your score. $$40\backslash \%$$ score reduction after attempt $3$ Part $3$ What is the $y$$-$component of the average net force on the lander during this time interval? $\backslash [$ F$\_\{\backslash$mathrm$\{$be$\},\backslash$mathrm$\{$y$\}\}=\backslash$mathbf$\{$i$\}\backslash$quad $\backslash$mathrm$\{$N$\}\backslash ]$