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Artyom0805 [142]
3 years ago
12

A man is dragging a trunk up the loading ramp of mover's truck. The ramp has a slope angle of 20 degree, and the man pulls upwar

d with a force F whose direction makes an angle of 30 degree with ramp. a) How large a force F is a necessary or the component F, parallel to the ramp to be 60N? b) How large will the component F, then be?
Mathematics
2 answers:
adell [148]3 years ago
7 0
As we know that
Fx = Fcos30.0deg 
<span>60.0N = Fcos30.0deg </span>
<span>F = 60.0N/cos30.0deg </span>
<span>F = 69.3 N
</span><span> Fy = Fsin30.0deg </span>
<span>Fy = 69.3 N sin 30.0 deg </span>
<span>Fy = 34.6 N
</span>hope it helps
Vika [28.1K]3 years ago
7 0

Answer:

a.69.3 N

b.34.7 N

Step-by-step explanation:

We are given that

Angle of inclination of the ramp=20^{\circ}

Force F makes an angle with ramp=30^{\circ}

The component  of F parallel to the ramp =60 N

a.We have to find the value of when its horizontal component is 60 N.

We know that

F_x=F cos 30^{\circ}

F=\frac{F_x}{cos 30^{\circ}}

F=\frac{60}{\frac{\sqrt3}{2}}

F=40\sqrt3=69.3N

b.We have to find F_y perpendicular to the ramp.

F_y=Fsin 30^{\circ}

F_y=69.3\times \frac{1}{2}=34.7 N

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