Pulling a sled across snow with a rope at an angle

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    Angle Rope
In summary, the man pulls a small sledge with a force F ⃗ of intensity equal to 50.0 N and that makes an angle with the horizontal θ = 30º. The sled moves horizontally and the resistance that the snow offers to the movement of the sled results in a frictional force of intensity F a = 15 N. The sled has a mass of 20 kg.
  • #1
Poster has been reminded to show their work on schoolwork problems
Homework Statement
I need help understanding this exercise
Relevant Equations
dont know
Hello. Can someone tell me what area of phisics should I study to better understand this exercise and also what should I do to solve this exercise please?
A man pulls a small sledge with a force F ⃗ of intensity equal to 50.0 N and that makes an angle with the horizontal θ = 30º (see figure). The sled moves horizontally and the resistance that the snow offers to the movement of the sled results in a frictional force of intensity F a = 15 N. the sled has a mass of 20 kg. Determine:
Screenshot_2021-04-03 M23 - Fis_Qui_Aluno_int_ProvaModelo_vfinal pdf.png
a) the normal reaction to which the sled is subjected;

b) the resulting horizontal force on the sled;

c) the acceleration acquired by the sled;

d) the speed acquired by the sled after 10 s, assuming it started from rest.

(Use g = 10.0 m ∙ s -2 ).
 
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  • #2
Purpleshinyrock said:
Can someone tell me what area of phisics should I study to better understand this exercise and also what should I do to solve this exercise please?
Assuming you know trig, you just need classical mechanics.
 
  • #3
Purpleshinyrock said:
also what should I do to solve this exercise please?
With this type of problem, it is usually best to start by drawing a Free Body Diagram (FBD). So show us your FBD for the sled, and show us the equations that you write for it given the problem description and the questions...
 
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  • #5
Thank You all for the answers and advice I used them to learn about the topic and solve the problem,
heres my answer:
 

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  • #6
Purpleshinyrock said:
heres my answer:
Illegible
 
  • #7
phinds said:
Illegible
Is this better sir/maam?
 

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  • #8
Purpleshinyrock said:
Is this better sir/maam?
It looks right. But, did you know that ##14m/s## is about ##50km/h##? That's pretty fast for running backwards on snow.
 
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  • #9
woahh He must be very motivated (and maybe superhuman)
 

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