NEET Test Series from KOTA - 10 Papers In MS WORD
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Motion in Plane
269901
Which one of the following cannot be represented by the three sides of a triangle?
1 \(5,9,11\)
2 \(5,7,13\)
3 \(7,10,13\)
4 \(3,8,9\)
Explanation:
To get a closed\(\Delta^{l e}\), the sum of any two vectors in magnitude must be either equal or large in magnitude of the third.
Motion in Plane
269902
\(\quad\) Figure shows three vectors \(\vec{a}, \vec{b}\) and \(\vec{c}\) where \(R\) is the mid point of \(P Q\). then which of the following relations is correct.
1 \(\vec{a}+\vec{b}=2 \vec{c}\)
2 \(\vec{a}+\vec{b}=\vec{c}\)
3 \(\vec{a}-\vec{b}=\overrightarrow{2 c}\)
4 \(\vec{a}-\vec{b}=\vec{c}\)
Explanation:
\(\therefore \vec{b}+\vec{a}=2 \vec{c}\)
Motion in Plane
269903
Eleven forces each equal to\(5 \mathrm{~N}\) act on a particle simultaneously. If each force makes an angle \(30^{\circ}\) with the next one, the resultant of all forces is
1 \(15 \mathrm{~N}\)
2 \(55 \mathrm{~N}\)
3 \(5 \mathrm{~N}\)
4 zero
Explanation:
No. of forces\(=11 ; \quad n=\frac{360}{\theta}=12\)
polygon formed with 1 side absent, resultant is closing side.
Motion in Plane
269904
A body of mass\(\sqrt{3} \mathrm{~kg}\) is suspended by a string to rigid support.The body is pulled horizontally by a force \(F\) until the string makes an angle of \(30^{\circ}\) with the vertical. The value of \(F\) and tension in the string are
269901
Which one of the following cannot be represented by the three sides of a triangle?
1 \(5,9,11\)
2 \(5,7,13\)
3 \(7,10,13\)
4 \(3,8,9\)
Explanation:
To get a closed\(\Delta^{l e}\), the sum of any two vectors in magnitude must be either equal or large in magnitude of the third.
Motion in Plane
269902
\(\quad\) Figure shows three vectors \(\vec{a}, \vec{b}\) and \(\vec{c}\) where \(R\) is the mid point of \(P Q\). then which of the following relations is correct.
1 \(\vec{a}+\vec{b}=2 \vec{c}\)
2 \(\vec{a}+\vec{b}=\vec{c}\)
3 \(\vec{a}-\vec{b}=\overrightarrow{2 c}\)
4 \(\vec{a}-\vec{b}=\vec{c}\)
Explanation:
\(\therefore \vec{b}+\vec{a}=2 \vec{c}\)
Motion in Plane
269903
Eleven forces each equal to\(5 \mathrm{~N}\) act on a particle simultaneously. If each force makes an angle \(30^{\circ}\) with the next one, the resultant of all forces is
1 \(15 \mathrm{~N}\)
2 \(55 \mathrm{~N}\)
3 \(5 \mathrm{~N}\)
4 zero
Explanation:
No. of forces\(=11 ; \quad n=\frac{360}{\theta}=12\)
polygon formed with 1 side absent, resultant is closing side.
Motion in Plane
269904
A body of mass\(\sqrt{3} \mathrm{~kg}\) is suspended by a string to rigid support.The body is pulled horizontally by a force \(F\) until the string makes an angle of \(30^{\circ}\) with the vertical. The value of \(F\) and tension in the string are
269901
Which one of the following cannot be represented by the three sides of a triangle?
1 \(5,9,11\)
2 \(5,7,13\)
3 \(7,10,13\)
4 \(3,8,9\)
Explanation:
To get a closed\(\Delta^{l e}\), the sum of any two vectors in magnitude must be either equal or large in magnitude of the third.
Motion in Plane
269902
\(\quad\) Figure shows three vectors \(\vec{a}, \vec{b}\) and \(\vec{c}\) where \(R\) is the mid point of \(P Q\). then which of the following relations is correct.
1 \(\vec{a}+\vec{b}=2 \vec{c}\)
2 \(\vec{a}+\vec{b}=\vec{c}\)
3 \(\vec{a}-\vec{b}=\overrightarrow{2 c}\)
4 \(\vec{a}-\vec{b}=\vec{c}\)
Explanation:
\(\therefore \vec{b}+\vec{a}=2 \vec{c}\)
Motion in Plane
269903
Eleven forces each equal to\(5 \mathrm{~N}\) act on a particle simultaneously. If each force makes an angle \(30^{\circ}\) with the next one, the resultant of all forces is
1 \(15 \mathrm{~N}\)
2 \(55 \mathrm{~N}\)
3 \(5 \mathrm{~N}\)
4 zero
Explanation:
No. of forces\(=11 ; \quad n=\frac{360}{\theta}=12\)
polygon formed with 1 side absent, resultant is closing side.
Motion in Plane
269904
A body of mass\(\sqrt{3} \mathrm{~kg}\) is suspended by a string to rigid support.The body is pulled horizontally by a force \(F\) until the string makes an angle of \(30^{\circ}\) with the vertical. The value of \(F\) and tension in the string are
269901
Which one of the following cannot be represented by the three sides of a triangle?
1 \(5,9,11\)
2 \(5,7,13\)
3 \(7,10,13\)
4 \(3,8,9\)
Explanation:
To get a closed\(\Delta^{l e}\), the sum of any two vectors in magnitude must be either equal or large in magnitude of the third.
Motion in Plane
269902
\(\quad\) Figure shows three vectors \(\vec{a}, \vec{b}\) and \(\vec{c}\) where \(R\) is the mid point of \(P Q\). then which of the following relations is correct.
1 \(\vec{a}+\vec{b}=2 \vec{c}\)
2 \(\vec{a}+\vec{b}=\vec{c}\)
3 \(\vec{a}-\vec{b}=\overrightarrow{2 c}\)
4 \(\vec{a}-\vec{b}=\vec{c}\)
Explanation:
\(\therefore \vec{b}+\vec{a}=2 \vec{c}\)
Motion in Plane
269903
Eleven forces each equal to\(5 \mathrm{~N}\) act on a particle simultaneously. If each force makes an angle \(30^{\circ}\) with the next one, the resultant of all forces is
1 \(15 \mathrm{~N}\)
2 \(55 \mathrm{~N}\)
3 \(5 \mathrm{~N}\)
4 zero
Explanation:
No. of forces\(=11 ; \quad n=\frac{360}{\theta}=12\)
polygon formed with 1 side absent, resultant is closing side.
Motion in Plane
269904
A body of mass\(\sqrt{3} \mathrm{~kg}\) is suspended by a string to rigid support.The body is pulled horizontally by a force \(F\) until the string makes an angle of \(30^{\circ}\) with the vertical. The value of \(F\) and tension in the string are
