$32,$ consider Figure $4$ where a sled with a passenger is moved over $1$ m along the sled and sorce of $520$ N applied at an angle of $30$ above the horizontal. Coefficient of friction between the sled and snow is $0\mathrm{.}4$ and the total mass of the sled and the passenger is $68$ kg $.$

$50.$ Calculate the work done by the applied force, F$.$

$($A$)$ OJ

$($B$)163$ J

$($C$)260$ J

$($D$)371$ J

$($E$)450$ J

$51.$ Calculate the work done by the kinetic friction force.

$($A$)$ OJ

$($B$)163$ J

$($C$)260$ J

$($D$)371$ J

$($E$)450$ J

Figure $4$: Sled pulled over a leveled surface

$52.$ Calculate the work done by the normal force.

$($A$)0$ J

$($B$)163$ J

$($C$)260$ J

$($D$)371$ J

$($E$)450$ J