Torque and Angular Momentum
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366200 A force of \(-\mathrm{F} \hat{k}\) acts on \(O\), the origin of the coordinate system as shown in the figure. The torque about the point \((1,-1)\) is
supporting img

1 \(F(\hat{i}-\hat{j})\)
2 \(-F(\hat{i}+\hat{j})\)
3 \(-F(\hat{i}-\hat{j})\)
4 \(F(\hat{i}+\hat{j})\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366201 A force of \(-F \hat{K}\) acts on \(O\), the origin of the coordinate system. The torque about point \((1,-2)\) is:

1 \(F(\hat{i}+\hat{j})\)
2 \(-F(2 \hat{i}+\hat{j})\)
3 \(F(\hat{i}-\hat{j})\)
4 \(-F(2 \hat{i}-\hat{j})\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366202 A force \(F=2.0 \mathrm{~N}\) acts on a particle \(P\) in the \(x-z\) plane. The force \(F\) is parallel to \(X\)-axis. The particle \(P\) (as shown in the figure) is at a distance \(3\;m\) and the line joining \(P\) with the origin makes angle \(30^{\circ}\) with the \(X\)-axis. The magnitude of torque on \(P\) w.r.t. origin \(O\) (in \(N-m)\) is
supporting img

1 2
2 3
3 4
4 5
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366203 \(A B C\) is an equilateral triangle with \(O\) as its centre. \(F_{1}, F_{2}\) and \(F_{3}\) represent three forces acting along the sides \(A B, B C\) and \(A C\), respectively. If the total torque about \(O\) is zero, then the magnitude of \(F_{3}\) is
supporting img

1 \(F_{1}+F_{2}\)
2 \(F_{1}-F_{2}\)
3 \(\dfrac{F_{1}+F_{2}}{2}\)
4 \(2\left(F_{1}+F_{2}\right)\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366200 A force of \(-\mathrm{F} \hat{k}\) acts on \(O\), the origin of the coordinate system as shown in the figure. The torque about the point \((1,-1)\) is
supporting img

1 \(F(\hat{i}-\hat{j})\)
2 \(-F(\hat{i}+\hat{j})\)
3 \(-F(\hat{i}-\hat{j})\)
4 \(F(\hat{i}+\hat{j})\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366201 A force of \(-F \hat{K}\) acts on \(O\), the origin of the coordinate system. The torque about point \((1,-2)\) is:

1 \(F(\hat{i}+\hat{j})\)
2 \(-F(2 \hat{i}+\hat{j})\)
3 \(F(\hat{i}-\hat{j})\)
4 \(-F(2 \hat{i}-\hat{j})\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366202 A force \(F=2.0 \mathrm{~N}\) acts on a particle \(P\) in the \(x-z\) plane. The force \(F\) is parallel to \(X\)-axis. The particle \(P\) (as shown in the figure) is at a distance \(3\;m\) and the line joining \(P\) with the origin makes angle \(30^{\circ}\) with the \(X\)-axis. The magnitude of torque on \(P\) w.r.t. origin \(O\) (in \(N-m)\) is
supporting img

1 2
2 3
3 4
4 5
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366203 \(A B C\) is an equilateral triangle with \(O\) as its centre. \(F_{1}, F_{2}\) and \(F_{3}\) represent three forces acting along the sides \(A B, B C\) and \(A C\), respectively. If the total torque about \(O\) is zero, then the magnitude of \(F_{3}\) is
supporting img

1 \(F_{1}+F_{2}\)
2 \(F_{1}-F_{2}\)
3 \(\dfrac{F_{1}+F_{2}}{2}\)
4 \(2\left(F_{1}+F_{2}\right)\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366200 A force of \(-\mathrm{F} \hat{k}\) acts on \(O\), the origin of the coordinate system as shown in the figure. The torque about the point \((1,-1)\) is
supporting img

1 \(F(\hat{i}-\hat{j})\)
2 \(-F(\hat{i}+\hat{j})\)
3 \(-F(\hat{i}-\hat{j})\)
4 \(F(\hat{i}+\hat{j})\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366201 A force of \(-F \hat{K}\) acts on \(O\), the origin of the coordinate system. The torque about point \((1,-2)\) is:

1 \(F(\hat{i}+\hat{j})\)
2 \(-F(2 \hat{i}+\hat{j})\)
3 \(F(\hat{i}-\hat{j})\)
4 \(-F(2 \hat{i}-\hat{j})\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366202 A force \(F=2.0 \mathrm{~N}\) acts on a particle \(P\) in the \(x-z\) plane. The force \(F\) is parallel to \(X\)-axis. The particle \(P\) (as shown in the figure) is at a distance \(3\;m\) and the line joining \(P\) with the origin makes angle \(30^{\circ}\) with the \(X\)-axis. The magnitude of torque on \(P\) w.r.t. origin \(O\) (in \(N-m)\) is
supporting img

1 2
2 3
3 4
4 5
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366203 \(A B C\) is an equilateral triangle with \(O\) as its centre. \(F_{1}, F_{2}\) and \(F_{3}\) represent three forces acting along the sides \(A B, B C\) and \(A C\), respectively. If the total torque about \(O\) is zero, then the magnitude of \(F_{3}\) is
supporting img

1 \(F_{1}+F_{2}\)
2 \(F_{1}-F_{2}\)
3 \(\dfrac{F_{1}+F_{2}}{2}\)
4 \(2\left(F_{1}+F_{2}\right)\)
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PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366200 A force of \(-\mathrm{F} \hat{k}\) acts on \(O\), the origin of the coordinate system as shown in the figure. The torque about the point \((1,-1)\) is
supporting img

1 \(F(\hat{i}-\hat{j})\)
2 \(-F(\hat{i}+\hat{j})\)
3 \(-F(\hat{i}-\hat{j})\)
4 \(F(\hat{i}+\hat{j})\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366201 A force of \(-F \hat{K}\) acts on \(O\), the origin of the coordinate system. The torque about point \((1,-2)\) is:

1 \(F(\hat{i}+\hat{j})\)
2 \(-F(2 \hat{i}+\hat{j})\)
3 \(F(\hat{i}-\hat{j})\)
4 \(-F(2 \hat{i}-\hat{j})\)
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366202 A force \(F=2.0 \mathrm{~N}\) acts on a particle \(P\) in the \(x-z\) plane. The force \(F\) is parallel to \(X\)-axis. The particle \(P\) (as shown in the figure) is at a distance \(3\;m\) and the line joining \(P\) with the origin makes angle \(30^{\circ}\) with the \(X\)-axis. The magnitude of torque on \(P\) w.r.t. origin \(O\) (in \(N-m)\) is
supporting img

1 2
2 3
3 4
4 5
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

366203 \(A B C\) is an equilateral triangle with \(O\) as its centre. \(F_{1}, F_{2}\) and \(F_{3}\) represent three forces acting along the sides \(A B, B C\) and \(A C\), respectively. If the total torque about \(O\) is zero, then the magnitude of \(F_{3}\) is
supporting img

1 \(F_{1}+F_{2}\)
2 \(F_{1}-F_{2}\)
3 \(\dfrac{F_{1}+F_{2}}{2}\)
4 \(2\left(F_{1}+F_{2}\right)\)