91Ó°ÊÓ

1. Gravitational acceleration on the moon, $g_m=1.6\mathrm{m}/{\mathrm{s}}^2$,
2. The upward acceleration is $a=1.0\mathrm{m}/{\mathrm{s}}^2$and
3. The weight of the pilot on the earth is $W_{onearth}=735\mathrm{N}$.

acceleration.

Use Newton’s second law to find the force. Using given values, we can find the mass of the pilot. The net force on the pilot is the sum of applied force and the force of gravity.

Formulae:

$$\begin{gathered} \mathbf{F}\mathbf{=}\mathbf{ma} \\ \mathbf{W}\mathbf{=}\mathbf{mg} \end{gathered}$$

Here,F is force,m is mass,a is acceleration,W is weight,g is gravitational acceleration.

The calculation for the force exerted by the ship on the pilot:

The weight of the person on earth is,

$$\begin{gathered} W=m{g}_e \\ =735\mathrm{N} \end{gathered}$$

$$\begin{gathered} m=\frac{W}{g_e} \\ =\frac{735\mathrm{N}}{9.8\mathrm{m}/{\mathrm{s}}^2} \\ =75\mathrm{kg} \end{gathered}$$

Net force is,

$$\begin{gathered} F_{net}=F_{app}-W_{moon} \\ ma=F_{app}-\left(m{g}_m\right) \\ \left(75\mathrm{kg}\mathrm{x}1.0\mathrm{m}/{\mathrm{s}}^2\right)=F_{app}\left(75\mathrm{kg}\mathrm{x}1.6\mathrm{m}/{\mathrm{s}}^2\right) \\ {F}_{app}=\left(75\mathrm{kg}\mathrm{x}1.0\mathrm{m}/{\mathrm{s}}^2\right)+\left(75\mathrm{kg}\mathrm{x}1.6\mathrm{m}/{\mathrm{s}}^2\right) \\ {F}_{app}=195\mathrm{N} \end{gathered}$$

Therefore, the force exerted by ship on the pilot is 195 N.