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2D force vector

Authored by Sittichoke Pookpunt

Mathematics, Physical Ed

10th Grade - University

Used 4+ times

2D force vector
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5 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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จงเขียนแรง F1 ดังรูปให้อยู่ในรูปเวคเตอร์

600×(3i+4j)600\times\left(3\overline{i}+4\overline{j}\right)

600×(35i+45j)600\times\left(\frac{3}{5}\overline{i}+\frac{4}{5}\overline{j}\right)

600×5(4i+3j)600\times5\left(4\overline{i}+3\overline{j}\right)

600×(45i+35j)600\times\left(\frac{4}{5}\overline{i}+\frac{3}{5}\overline{j}\right)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

กำหนดให้  F1=100i+200j kN\overline{F_1}=100\overline{i}+200\overline{j}\ kN และ  F2=50i50j kN\overline{F_2}=50\overline{i}-50\overline{j}\ kN  จงหาผลรวมของแรงทั้ง 2

 FR=150i+250j kN\overline{F_R}=150\overline{i}+250\overline{j}\ kN  

 FR=150i+150j kN\overline{F_R}=150\overline{i}+150\overline{j}\ kN  

 FR=50i+250j kN\overline{F_R}=50\overline{i}+250\overline{j}\ kN  

 FR=50i+150j kN\overline{F_R}=50\overline{i}+150\overline{j}\ kN  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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จงหาเวคเตอร์รวมของแรง  FR=F1+F2\overline{F_R}=\overline{F_1}+\overline{F_2} ดังรูป

 FR=279 N, θx=13.8o\left|F_R\right|=279\ N,\ \theta_x=13.8^o  

 FR=347 N, θx=38.6o\left|F_R\right|=347\ N,\ \theta_x=38.6^o  

 FR=350 N, θx=52.5o\left|F_R\right|=350\ N,\ \theta_x=52.5^o  

 FR=350 N, θx=15.0o\left|F_R\right|=350\ N,\ \theta_x=15.0^o  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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