PREVIOUS EAMCET QUESTIONS
Work, Energy and Power

268800 A canon shell fired breaks into two equal parts at its highest point. One part retraces the path to the canon with kinetic energy\(E_{1}\) and the kinetic energy of the second part is \(\mathrm{E}_{2}\). Relation between \(E_{1}\) and \(E_{2}\) is
\((2014\) E)

1 \(E_{2}=E_{1}\)
2 \(E_{2}=4 E_{1}\)
3 \(E_{2}=9 E_{1}\)
4 \(E_{2}=15 E_{1}\)
Work, Energy and Power

268801 A body of\(200 \mathrm{~g}\) begins to fall from a height where its potential energy is \(80 \mathrm{~J}\). Its velocity at a point where its kinetic and potential energies are equal(in \(\mathrm{m} / \mathrm{s})(2014 \mathrm{M})\)

1 \(10 \sqrt{8}\)
2 4
3 400
4 20
Work, Energy and Power

268802 The work done by a force\(\bar{F}=2 \bar{i}-\bar{j}-\bar{k}\) in moving an object from origin to a point whose position vector is \(\bar{r}=3 \bar{i}+2 \bar{j}-5 \bar{k} \quad(2013\) E)

1 1 unit
2 9 units
3 13 units
4 60 units
Work, Energy and Power

268803 A ball at rest is dropped from a height of\(12 \mathrm{~m}\). If it looses \(25 \%\) of its kinetic energy on striking the ground and bounces back to a height ' \(h\) '. the value of ' \(h\) ' is equal to ( \(2013 \mathrm{E}\) )

1 \(3 \mathrm{~m}\)
2 \(6 \mathrm{~m}\)
3 \(9 \mathrm{~m}\)
4 \(12 \mathrm{~m}\)
Work, Energy and Power

268804 A block of mass\(2.9 \mathrm{~kg}\) is suspended from a string of length \(50 \mathrm{~cm}\) and is at rest. Another block of mass \(100 \mathrm{~g}\), which is moving with a speed of \(150 \mathrm{~m} / \mathrm{s}\) strikes and sticks to the first block. Subsequently when the string makes an angle of \(60{ }^{\circ}\). With the vertical, the tension in the string will be \(\left(g=10 \mathbf{~ m s}^{-2}\right)\) ( \(2013 \mathrm{E}\) )

1 \(140 \mathrm{~N}\)
2 \(135 \mathrm{~N}\)
3 \(125 \mathrm{~N}\)
4 \(90 \mathrm{~N}\)
Work, Energy and Power

268800 A canon shell fired breaks into two equal parts at its highest point. One part retraces the path to the canon with kinetic energy\(E_{1}\) and the kinetic energy of the second part is \(\mathrm{E}_{2}\). Relation between \(E_{1}\) and \(E_{2}\) is
\((2014\) E)

1 \(E_{2}=E_{1}\)
2 \(E_{2}=4 E_{1}\)
3 \(E_{2}=9 E_{1}\)
4 \(E_{2}=15 E_{1}\)
Work, Energy and Power

268801 A body of\(200 \mathrm{~g}\) begins to fall from a height where its potential energy is \(80 \mathrm{~J}\). Its velocity at a point where its kinetic and potential energies are equal(in \(\mathrm{m} / \mathrm{s})(2014 \mathrm{M})\)

1 \(10 \sqrt{8}\)
2 4
3 400
4 20
Work, Energy and Power

268802 The work done by a force\(\bar{F}=2 \bar{i}-\bar{j}-\bar{k}\) in moving an object from origin to a point whose position vector is \(\bar{r}=3 \bar{i}+2 \bar{j}-5 \bar{k} \quad(2013\) E)

1 1 unit
2 9 units
3 13 units
4 60 units
Work, Energy and Power

268803 A ball at rest is dropped from a height of\(12 \mathrm{~m}\). If it looses \(25 \%\) of its kinetic energy on striking the ground and bounces back to a height ' \(h\) '. the value of ' \(h\) ' is equal to ( \(2013 \mathrm{E}\) )

1 \(3 \mathrm{~m}\)
2 \(6 \mathrm{~m}\)
3 \(9 \mathrm{~m}\)
4 \(12 \mathrm{~m}\)
Work, Energy and Power

268804 A block of mass\(2.9 \mathrm{~kg}\) is suspended from a string of length \(50 \mathrm{~cm}\) and is at rest. Another block of mass \(100 \mathrm{~g}\), which is moving with a speed of \(150 \mathrm{~m} / \mathrm{s}\) strikes and sticks to the first block. Subsequently when the string makes an angle of \(60{ }^{\circ}\). With the vertical, the tension in the string will be \(\left(g=10 \mathbf{~ m s}^{-2}\right)\) ( \(2013 \mathrm{E}\) )

1 \(140 \mathrm{~N}\)
2 \(135 \mathrm{~N}\)
3 \(125 \mathrm{~N}\)
4 \(90 \mathrm{~N}\)
Work, Energy and Power

268800 A canon shell fired breaks into two equal parts at its highest point. One part retraces the path to the canon with kinetic energy\(E_{1}\) and the kinetic energy of the second part is \(\mathrm{E}_{2}\). Relation between \(E_{1}\) and \(E_{2}\) is
\((2014\) E)

1 \(E_{2}=E_{1}\)
2 \(E_{2}=4 E_{1}\)
3 \(E_{2}=9 E_{1}\)
4 \(E_{2}=15 E_{1}\)
Work, Energy and Power

268801 A body of\(200 \mathrm{~g}\) begins to fall from a height where its potential energy is \(80 \mathrm{~J}\). Its velocity at a point where its kinetic and potential energies are equal(in \(\mathrm{m} / \mathrm{s})(2014 \mathrm{M})\)

1 \(10 \sqrt{8}\)
2 4
3 400
4 20
Work, Energy and Power

268802 The work done by a force\(\bar{F}=2 \bar{i}-\bar{j}-\bar{k}\) in moving an object from origin to a point whose position vector is \(\bar{r}=3 \bar{i}+2 \bar{j}-5 \bar{k} \quad(2013\) E)

1 1 unit
2 9 units
3 13 units
4 60 units
Work, Energy and Power

268803 A ball at rest is dropped from a height of\(12 \mathrm{~m}\). If it looses \(25 \%\) of its kinetic energy on striking the ground and bounces back to a height ' \(h\) '. the value of ' \(h\) ' is equal to ( \(2013 \mathrm{E}\) )

1 \(3 \mathrm{~m}\)
2 \(6 \mathrm{~m}\)
3 \(9 \mathrm{~m}\)
4 \(12 \mathrm{~m}\)
Work, Energy and Power

268804 A block of mass\(2.9 \mathrm{~kg}\) is suspended from a string of length \(50 \mathrm{~cm}\) and is at rest. Another block of mass \(100 \mathrm{~g}\), which is moving with a speed of \(150 \mathrm{~m} / \mathrm{s}\) strikes and sticks to the first block. Subsequently when the string makes an angle of \(60{ }^{\circ}\). With the vertical, the tension in the string will be \(\left(g=10 \mathbf{~ m s}^{-2}\right)\) ( \(2013 \mathrm{E}\) )

1 \(140 \mathrm{~N}\)
2 \(135 \mathrm{~N}\)
3 \(125 \mathrm{~N}\)
4 \(90 \mathrm{~N}\)
Work, Energy and Power

268800 A canon shell fired breaks into two equal parts at its highest point. One part retraces the path to the canon with kinetic energy\(E_{1}\) and the kinetic energy of the second part is \(\mathrm{E}_{2}\). Relation between \(E_{1}\) and \(E_{2}\) is
\((2014\) E)

1 \(E_{2}=E_{1}\)
2 \(E_{2}=4 E_{1}\)
3 \(E_{2}=9 E_{1}\)
4 \(E_{2}=15 E_{1}\)
Work, Energy and Power

268801 A body of\(200 \mathrm{~g}\) begins to fall from a height where its potential energy is \(80 \mathrm{~J}\). Its velocity at a point where its kinetic and potential energies are equal(in \(\mathrm{m} / \mathrm{s})(2014 \mathrm{M})\)

1 \(10 \sqrt{8}\)
2 4
3 400
4 20
Work, Energy and Power

268802 The work done by a force\(\bar{F}=2 \bar{i}-\bar{j}-\bar{k}\) in moving an object from origin to a point whose position vector is \(\bar{r}=3 \bar{i}+2 \bar{j}-5 \bar{k} \quad(2013\) E)

1 1 unit
2 9 units
3 13 units
4 60 units
Work, Energy and Power

268803 A ball at rest is dropped from a height of\(12 \mathrm{~m}\). If it looses \(25 \%\) of its kinetic energy on striking the ground and bounces back to a height ' \(h\) '. the value of ' \(h\) ' is equal to ( \(2013 \mathrm{E}\) )

1 \(3 \mathrm{~m}\)
2 \(6 \mathrm{~m}\)
3 \(9 \mathrm{~m}\)
4 \(12 \mathrm{~m}\)
Work, Energy and Power

268804 A block of mass\(2.9 \mathrm{~kg}\) is suspended from a string of length \(50 \mathrm{~cm}\) and is at rest. Another block of mass \(100 \mathrm{~g}\), which is moving with a speed of \(150 \mathrm{~m} / \mathrm{s}\) strikes and sticks to the first block. Subsequently when the string makes an angle of \(60{ }^{\circ}\). With the vertical, the tension in the string will be \(\left(g=10 \mathbf{~ m s}^{-2}\right)\) ( \(2013 \mathrm{E}\) )

1 \(140 \mathrm{~N}\)
2 \(135 \mathrm{~N}\)
3 \(125 \mathrm{~N}\)
4 \(90 \mathrm{~N}\)
Work, Energy and Power

268800 A canon shell fired breaks into two equal parts at its highest point. One part retraces the path to the canon with kinetic energy\(E_{1}\) and the kinetic energy of the second part is \(\mathrm{E}_{2}\). Relation between \(E_{1}\) and \(E_{2}\) is
\((2014\) E)

1 \(E_{2}=E_{1}\)
2 \(E_{2}=4 E_{1}\)
3 \(E_{2}=9 E_{1}\)
4 \(E_{2}=15 E_{1}\)
Work, Energy and Power

268801 A body of\(200 \mathrm{~g}\) begins to fall from a height where its potential energy is \(80 \mathrm{~J}\). Its velocity at a point where its kinetic and potential energies are equal(in \(\mathrm{m} / \mathrm{s})(2014 \mathrm{M})\)

1 \(10 \sqrt{8}\)
2 4
3 400
4 20
Work, Energy and Power

268802 The work done by a force\(\bar{F}=2 \bar{i}-\bar{j}-\bar{k}\) in moving an object from origin to a point whose position vector is \(\bar{r}=3 \bar{i}+2 \bar{j}-5 \bar{k} \quad(2013\) E)

1 1 unit
2 9 units
3 13 units
4 60 units
Work, Energy and Power

268803 A ball at rest is dropped from a height of\(12 \mathrm{~m}\). If it looses \(25 \%\) of its kinetic energy on striking the ground and bounces back to a height ' \(h\) '. the value of ' \(h\) ' is equal to ( \(2013 \mathrm{E}\) )

1 \(3 \mathrm{~m}\)
2 \(6 \mathrm{~m}\)
3 \(9 \mathrm{~m}\)
4 \(12 \mathrm{~m}\)
Work, Energy and Power

268804 A block of mass\(2.9 \mathrm{~kg}\) is suspended from a string of length \(50 \mathrm{~cm}\) and is at rest. Another block of mass \(100 \mathrm{~g}\), which is moving with a speed of \(150 \mathrm{~m} / \mathrm{s}\) strikes and sticks to the first block. Subsequently when the string makes an angle of \(60{ }^{\circ}\). With the vertical, the tension in the string will be \(\left(g=10 \mathbf{~ m s}^{-2}\right)\) ( \(2013 \mathrm{E}\) )

1 \(140 \mathrm{~N}\)
2 \(135 \mathrm{~N}\)
3 \(125 \mathrm{~N}\)
4 \(90 \mathrm{~N}\)