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insens350
16 days ago
5

A man is dragging a trunk up the loading ramp of a mover’s truck. The ramp has a slope angle of 20.0°, and the man pulls upward

with a force FS whose direction makes an angle of 30.0° with the ramp (Fig. E4.4). (a) How large a force FS is necessary for the component Fx parallel to the ramp to be 90.0 N?(b) How large will the component Fy perpendicular to the ramp be then?

Physics
1 answer:
Sav [1.1K]16 days ago
5 0

Response:

(a) 104 N

(b) 52 N

Clarification:

Provided Information

Incline angle of the ramp: 20°

F forms a 30° angle with the ramp

The parallel component of F along the ramp is Fx = 90 N.

The perpendicular component of F is Fy.

(a)

Consider the +x direction pointing up the slope, and the +y direction perpendicular to the ramp's surface.

Using the Pythagorean theorem, decompose F into its x-component:

Fx=Fcos30°

To find F:

F= Fx/cos30°

Insert the value for Fx based on the given info:

Fx=90 N/cos30°

   =104 N

(b) Calculate the y-component of r using the Pythagorean theorem:

     Fy = Fsin 30°

Substituting for F from part (a):

     Fy = (104 N) (sin 30°)  

          = 52 N  

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6 0
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kicyunya [1033]

The complete question is;

A ski jumper descends a ramp and exits the ski track at a horizontal speed of 24 m/s. The slope at the landing site angles downwards at θ = 59◦. The acceleration due to gravity is 9.8 m/s².

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