Work
PHXI06:WORK ENERGY AND POWER

355838 A force \(F=-K(y i+x j)\) (where \(K\) is positive constant) acts on a particle moving in the \(x y\) plane. Starting from the origin, the particle is taken along the positive \(x\)-axis to the point \((a, 0)\) and then parallel to the \(y\)-axis to the point \((a, a)\). The total work done by the force \(F\) on the particles is

1 \(K a^{2}\)
2 \(2 K a^{2}\)
3 \(-2 K a^{2}\)
4 \(-K a^{2}\)
PHXI06:WORK ENERGY AND POWER

355839 Force\(F\) on a particle moving in a straight line with distance \(x\) as shown in the figure. The work done on the particle during the displacement of 12 \(m\)
supporting img

1 13 \(J\)
2 18 \(J\)
3 21 \(J\)
4 26 \(J\)
PHXI06:WORK ENERGY AND POWER

355840 Identify the correct statement from the following:
I.
Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket is negative.
II.
Work done by gravitational force in lifting a bucket out of a well by a rope tied to the bucket is negative.
III.
Work done by friction on a body sliding down an inclined plane is positive.
IV.
Work done by an applied force on a body moving on a rough horizontal plane with uniform velocity is zero.
V.
Work done by the air resistance on an oscillating pendulum is negative.
Choose the correct answer from the options given below:

1 II, IV and V only
2 II and V only
3 II and IV only
4 I and III only
PHXI06:WORK ENERGY AND POWER

355841 Applied force versus position graph of an object is given below. Find the work done by the forces on the object.
supporting img

1 \(30\;J\)
2 \(34\,J\)
3 \(33\,J\)
4 \(20\,J\)
PHXI06:WORK ENERGY AND POWER

355842 A uniform chain of length 2 \(m\) is kept on a table such that a length of 60 \(cm\) hangs freely from the edge of the table. The total mass of the chain is 4 \(kg\) . What is the work done in pulling the entire chain on the table?

1 1200 \(J\)
2 3.6 \(J\)
3 7.2 \(J\)
4 120 \(J\)
PHXI06:WORK ENERGY AND POWER

355838 A force \(F=-K(y i+x j)\) (where \(K\) is positive constant) acts on a particle moving in the \(x y\) plane. Starting from the origin, the particle is taken along the positive \(x\)-axis to the point \((a, 0)\) and then parallel to the \(y\)-axis to the point \((a, a)\). The total work done by the force \(F\) on the particles is

1 \(K a^{2}\)
2 \(2 K a^{2}\)
3 \(-2 K a^{2}\)
4 \(-K a^{2}\)
PHXI06:WORK ENERGY AND POWER

355839 Force\(F\) on a particle moving in a straight line with distance \(x\) as shown in the figure. The work done on the particle during the displacement of 12 \(m\)
supporting img

1 13 \(J\)
2 18 \(J\)
3 21 \(J\)
4 26 \(J\)
PHXI06:WORK ENERGY AND POWER

355840 Identify the correct statement from the following:
I.
Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket is negative.
II.
Work done by gravitational force in lifting a bucket out of a well by a rope tied to the bucket is negative.
III.
Work done by friction on a body sliding down an inclined plane is positive.
IV.
Work done by an applied force on a body moving on a rough horizontal plane with uniform velocity is zero.
V.
Work done by the air resistance on an oscillating pendulum is negative.
Choose the correct answer from the options given below:

1 II, IV and V only
2 II and V only
3 II and IV only
4 I and III only
PHXI06:WORK ENERGY AND POWER

355841 Applied force versus position graph of an object is given below. Find the work done by the forces on the object.
supporting img

1 \(30\;J\)
2 \(34\,J\)
3 \(33\,J\)
4 \(20\,J\)
PHXI06:WORK ENERGY AND POWER

355842 A uniform chain of length 2 \(m\) is kept on a table such that a length of 60 \(cm\) hangs freely from the edge of the table. The total mass of the chain is 4 \(kg\) . What is the work done in pulling the entire chain on the table?

1 1200 \(J\)
2 3.6 \(J\)
3 7.2 \(J\)
4 120 \(J\)
PHXI06:WORK ENERGY AND POWER

355838 A force \(F=-K(y i+x j)\) (where \(K\) is positive constant) acts on a particle moving in the \(x y\) plane. Starting from the origin, the particle is taken along the positive \(x\)-axis to the point \((a, 0)\) and then parallel to the \(y\)-axis to the point \((a, a)\). The total work done by the force \(F\) on the particles is

1 \(K a^{2}\)
2 \(2 K a^{2}\)
3 \(-2 K a^{2}\)
4 \(-K a^{2}\)
PHXI06:WORK ENERGY AND POWER

355839 Force\(F\) on a particle moving in a straight line with distance \(x\) as shown in the figure. The work done on the particle during the displacement of 12 \(m\)
supporting img

1 13 \(J\)
2 18 \(J\)
3 21 \(J\)
4 26 \(J\)
PHXI06:WORK ENERGY AND POWER

355840 Identify the correct statement from the following:
I.
Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket is negative.
II.
Work done by gravitational force in lifting a bucket out of a well by a rope tied to the bucket is negative.
III.
Work done by friction on a body sliding down an inclined plane is positive.
IV.
Work done by an applied force on a body moving on a rough horizontal plane with uniform velocity is zero.
V.
Work done by the air resistance on an oscillating pendulum is negative.
Choose the correct answer from the options given below:

1 II, IV and V only
2 II and V only
3 II and IV only
4 I and III only
PHXI06:WORK ENERGY AND POWER

355841 Applied force versus position graph of an object is given below. Find the work done by the forces on the object.
supporting img

1 \(30\;J\)
2 \(34\,J\)
3 \(33\,J\)
4 \(20\,J\)
PHXI06:WORK ENERGY AND POWER

355842 A uniform chain of length 2 \(m\) is kept on a table such that a length of 60 \(cm\) hangs freely from the edge of the table. The total mass of the chain is 4 \(kg\) . What is the work done in pulling the entire chain on the table?

1 1200 \(J\)
2 3.6 \(J\)
3 7.2 \(J\)
4 120 \(J\)
PHXI06:WORK ENERGY AND POWER

355838 A force \(F=-K(y i+x j)\) (where \(K\) is positive constant) acts on a particle moving in the \(x y\) plane. Starting from the origin, the particle is taken along the positive \(x\)-axis to the point \((a, 0)\) and then parallel to the \(y\)-axis to the point \((a, a)\). The total work done by the force \(F\) on the particles is

1 \(K a^{2}\)
2 \(2 K a^{2}\)
3 \(-2 K a^{2}\)
4 \(-K a^{2}\)
PHXI06:WORK ENERGY AND POWER

355839 Force\(F\) on a particle moving in a straight line with distance \(x\) as shown in the figure. The work done on the particle during the displacement of 12 \(m\)
supporting img

1 13 \(J\)
2 18 \(J\)
3 21 \(J\)
4 26 \(J\)
PHXI06:WORK ENERGY AND POWER

355840 Identify the correct statement from the following:
I.
Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket is negative.
II.
Work done by gravitational force in lifting a bucket out of a well by a rope tied to the bucket is negative.
III.
Work done by friction on a body sliding down an inclined plane is positive.
IV.
Work done by an applied force on a body moving on a rough horizontal plane with uniform velocity is zero.
V.
Work done by the air resistance on an oscillating pendulum is negative.
Choose the correct answer from the options given below:

1 II, IV and V only
2 II and V only
3 II and IV only
4 I and III only
PHXI06:WORK ENERGY AND POWER

355841 Applied force versus position graph of an object is given below. Find the work done by the forces on the object.
supporting img

1 \(30\;J\)
2 \(34\,J\)
3 \(33\,J\)
4 \(20\,J\)
PHXI06:WORK ENERGY AND POWER

355842 A uniform chain of length 2 \(m\) is kept on a table such that a length of 60 \(cm\) hangs freely from the edge of the table. The total mass of the chain is 4 \(kg\) . What is the work done in pulling the entire chain on the table?

1 1200 \(J\)
2 3.6 \(J\)
3 7.2 \(J\)
4 120 \(J\)
PHXI06:WORK ENERGY AND POWER

355838 A force \(F=-K(y i+x j)\) (where \(K\) is positive constant) acts on a particle moving in the \(x y\) plane. Starting from the origin, the particle is taken along the positive \(x\)-axis to the point \((a, 0)\) and then parallel to the \(y\)-axis to the point \((a, a)\). The total work done by the force \(F\) on the particles is

1 \(K a^{2}\)
2 \(2 K a^{2}\)
3 \(-2 K a^{2}\)
4 \(-K a^{2}\)
PHXI06:WORK ENERGY AND POWER

355839 Force\(F\) on a particle moving in a straight line with distance \(x\) as shown in the figure. The work done on the particle during the displacement of 12 \(m\)
supporting img

1 13 \(J\)
2 18 \(J\)
3 21 \(J\)
4 26 \(J\)
PHXI06:WORK ENERGY AND POWER

355840 Identify the correct statement from the following:
I.
Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket is negative.
II.
Work done by gravitational force in lifting a bucket out of a well by a rope tied to the bucket is negative.
III.
Work done by friction on a body sliding down an inclined plane is positive.
IV.
Work done by an applied force on a body moving on a rough horizontal plane with uniform velocity is zero.
V.
Work done by the air resistance on an oscillating pendulum is negative.
Choose the correct answer from the options given below:

1 II, IV and V only
2 II and V only
3 II and IV only
4 I and III only
PHXI06:WORK ENERGY AND POWER

355841 Applied force versus position graph of an object is given below. Find the work done by the forces on the object.
supporting img

1 \(30\;J\)
2 \(34\,J\)
3 \(33\,J\)
4 \(20\,J\)
PHXI06:WORK ENERGY AND POWER

355842 A uniform chain of length 2 \(m\) is kept on a table such that a length of 60 \(cm\) hangs freely from the edge of the table. The total mass of the chain is 4 \(kg\) . What is the work done in pulling the entire chain on the table?

1 1200 \(J\)
2 3.6 \(J\)
3 7.2 \(J\)
4 120 \(J\)