The Work-Energy Theorem for a Constant/Variable Force
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PHXI06:WORK ENERGY AND POWER

355660 In the figure, a block slides along a track from one level to a higher level, by moving through an intermediate valley. The track is frictionless untill the block reaches the higher level. There a frictional force stops the block in a distance \(d\). The block's initial speed \(v_{0}\) is \(6\;m{\rm{/}}s\), the height difference \(h\) is \(1.1\,m\) and the coefficient of kinetic friction \(\mu\) is 0.6 . The value of \(d\) is
supporting img

1 \(1.17\;m\)
2 \(1.71\;m\)
3 \(7.11\;m\)
4 \(11.7\;m\)
PHXI06:WORK ENERGY AND POWER

355661 A hammer of mass \(M\) falls from a height \(h\) repeatedly to drive a pile of mass \(m\) in to the ground. The hammer makes the pile penetrate in the ground to a distance \(d\) in single blow. Opposition to penetration is given by

1 \(\dfrac{m^{2} g h}{(m+M) d}-(M-m) g\)
2 \(\dfrac{M^{2} g h}{M+m d}\)
3 \(\dfrac{M^{2} g h}{(m+M) d}+(M+m) g\)
4 \(\dfrac{m^{2} g h}{M+m d}\)
PHXI06:WORK ENERGY AND POWER

355662 Work energy theorem for a system having multiple particles depends on

1 Work done by external forces only
2 Work done by internal forces only
3 Work done by both external and internal forces
4 None of these
PHXI06:WORK ENERGY AND POWER

355663 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 \(J\)
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PHXI06:WORK ENERGY AND POWER

355660 In the figure, a block slides along a track from one level to a higher level, by moving through an intermediate valley. The track is frictionless untill the block reaches the higher level. There a frictional force stops the block in a distance \(d\). The block's initial speed \(v_{0}\) is \(6\;m{\rm{/}}s\), the height difference \(h\) is \(1.1\,m\) and the coefficient of kinetic friction \(\mu\) is 0.6 . The value of \(d\) is
supporting img

1 \(1.17\;m\)
2 \(1.71\;m\)
3 \(7.11\;m\)
4 \(11.7\;m\)
PHXI06:WORK ENERGY AND POWER

355661 A hammer of mass \(M\) falls from a height \(h\) repeatedly to drive a pile of mass \(m\) in to the ground. The hammer makes the pile penetrate in the ground to a distance \(d\) in single blow. Opposition to penetration is given by

1 \(\dfrac{m^{2} g h}{(m+M) d}-(M-m) g\)
2 \(\dfrac{M^{2} g h}{M+m d}\)
3 \(\dfrac{M^{2} g h}{(m+M) d}+(M+m) g\)
4 \(\dfrac{m^{2} g h}{M+m d}\)
PHXI06:WORK ENERGY AND POWER

355662 Work energy theorem for a system having multiple particles depends on

1 Work done by external forces only
2 Work done by internal forces only
3 Work done by both external and internal forces
4 None of these
PHXI06:WORK ENERGY AND POWER

355663 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 \(J\)
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PHXI06:WORK ENERGY AND POWER

355660 In the figure, a block slides along a track from one level to a higher level, by moving through an intermediate valley. The track is frictionless untill the block reaches the higher level. There a frictional force stops the block in a distance \(d\). The block's initial speed \(v_{0}\) is \(6\;m{\rm{/}}s\), the height difference \(h\) is \(1.1\,m\) and the coefficient of kinetic friction \(\mu\) is 0.6 . The value of \(d\) is
supporting img

1 \(1.17\;m\)
2 \(1.71\;m\)
3 \(7.11\;m\)
4 \(11.7\;m\)
PHXI06:WORK ENERGY AND POWER

355661 A hammer of mass \(M\) falls from a height \(h\) repeatedly to drive a pile of mass \(m\) in to the ground. The hammer makes the pile penetrate in the ground to a distance \(d\) in single blow. Opposition to penetration is given by

1 \(\dfrac{m^{2} g h}{(m+M) d}-(M-m) g\)
2 \(\dfrac{M^{2} g h}{M+m d}\)
3 \(\dfrac{M^{2} g h}{(m+M) d}+(M+m) g\)
4 \(\dfrac{m^{2} g h}{M+m d}\)
PHXI06:WORK ENERGY AND POWER

355662 Work energy theorem for a system having multiple particles depends on

1 Work done by external forces only
2 Work done by internal forces only
3 Work done by both external and internal forces
4 None of these
PHXI06:WORK ENERGY AND POWER

355663 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 \(J\)
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PHXI06:WORK ENERGY AND POWER

355660 In the figure, a block slides along a track from one level to a higher level, by moving through an intermediate valley. The track is frictionless untill the block reaches the higher level. There a frictional force stops the block in a distance \(d\). The block's initial speed \(v_{0}\) is \(6\;m{\rm{/}}s\), the height difference \(h\) is \(1.1\,m\) and the coefficient of kinetic friction \(\mu\) is 0.6 . The value of \(d\) is
supporting img

1 \(1.17\;m\)
2 \(1.71\;m\)
3 \(7.11\;m\)
4 \(11.7\;m\)
PHXI06:WORK ENERGY AND POWER

355661 A hammer of mass \(M\) falls from a height \(h\) repeatedly to drive a pile of mass \(m\) in to the ground. The hammer makes the pile penetrate in the ground to a distance \(d\) in single blow. Opposition to penetration is given by

1 \(\dfrac{m^{2} g h}{(m+M) d}-(M-m) g\)
2 \(\dfrac{M^{2} g h}{M+m d}\)
3 \(\dfrac{M^{2} g h}{(m+M) d}+(M+m) g\)
4 \(\dfrac{m^{2} g h}{M+m d}\)
PHXI06:WORK ENERGY AND POWER

355662 Work energy theorem for a system having multiple particles depends on

1 Work done by external forces only
2 Work done by internal forces only
3 Work done by both external and internal forces
4 None of these
PHXI06:WORK ENERGY AND POWER

355663 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 \(J\)
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