COEFFICIENT OF RESTITUTION
Work, Energy and Power

268795 A ball hits the ground and loses\(20 \%\) of its momentum. Coefficient of restitution is

1 0.2
2 0.4
3 0.6
4 0.8
Work, Energy and Power

268796 A plastic ball falling from a height\(4.9 \mathrm{~m}\) rebounds number of times. If total time for second collision is \(2.4 \mathrm{sec}\), then coefficient of restitution is

1 0.3
2 0.4
3 0.7
4 0.6
Work, Energy and Power

268797 A ball is dropped from a height '\(h\) ' on to a floor of coefficient of restitution ' \(e\) '. The total distance covered by the ball just before second hit is

1 \(h\left(1-2 e^{2}\right)\)
2 \(h\left(1+2 e^{2}\right)\)
3 \(h\left(1+e^{2}\right)\)
4 \(h e^{2}\)
Work, Energy and Power

268798 In two separate collisions, the coefficient of restitutions\(e_{1}\) and \(e_{2}\) are in the ratio \(3: 1\). In the first collision the relative velocity of approach is twice the relative velocity of separation. Then, the ratio between relative velocity of approach and relative velocity of separation in the second collision is ( \(2007 \mathrm{E}\) )

1 \(1: 6\)
2 \(2: 3\)
3 \(3: 2\)
4 \(6: 1\)
Work, Energy and Power

268799 A sphere of mass\(m\) moving with constant velocity \(u\), collides with another stationary sphere of same mass. If \(e\) is the coefficient of restitution, the ratio of the final velocities of the first and second sphere is \((2007 \mathrm{M})\)

1 \(\frac{1+e}{1-e}\)
2 \(\frac{1-e}{1+e}\)
3 \(\frac{e}{1-e}\)
4 \(\frac{1+e}{e}\)
Work, Energy and Power

268795 A ball hits the ground and loses\(20 \%\) of its momentum. Coefficient of restitution is

1 0.2
2 0.4
3 0.6
4 0.8
Work, Energy and Power

268796 A plastic ball falling from a height\(4.9 \mathrm{~m}\) rebounds number of times. If total time for second collision is \(2.4 \mathrm{sec}\), then coefficient of restitution is

1 0.3
2 0.4
3 0.7
4 0.6
Work, Energy and Power

268797 A ball is dropped from a height '\(h\) ' on to a floor of coefficient of restitution ' \(e\) '. The total distance covered by the ball just before second hit is

1 \(h\left(1-2 e^{2}\right)\)
2 \(h\left(1+2 e^{2}\right)\)
3 \(h\left(1+e^{2}\right)\)
4 \(h e^{2}\)
Work, Energy and Power

268798 In two separate collisions, the coefficient of restitutions\(e_{1}\) and \(e_{2}\) are in the ratio \(3: 1\). In the first collision the relative velocity of approach is twice the relative velocity of separation. Then, the ratio between relative velocity of approach and relative velocity of separation in the second collision is ( \(2007 \mathrm{E}\) )

1 \(1: 6\)
2 \(2: 3\)
3 \(3: 2\)
4 \(6: 1\)
Work, Energy and Power

268799 A sphere of mass\(m\) moving with constant velocity \(u\), collides with another stationary sphere of same mass. If \(e\) is the coefficient of restitution, the ratio of the final velocities of the first and second sphere is \((2007 \mathrm{M})\)

1 \(\frac{1+e}{1-e}\)
2 \(\frac{1-e}{1+e}\)
3 \(\frac{e}{1-e}\)
4 \(\frac{1+e}{e}\)
Work, Energy and Power

268795 A ball hits the ground and loses\(20 \%\) of its momentum. Coefficient of restitution is

1 0.2
2 0.4
3 0.6
4 0.8
Work, Energy and Power

268796 A plastic ball falling from a height\(4.9 \mathrm{~m}\) rebounds number of times. If total time for second collision is \(2.4 \mathrm{sec}\), then coefficient of restitution is

1 0.3
2 0.4
3 0.7
4 0.6
Work, Energy and Power

268797 A ball is dropped from a height '\(h\) ' on to a floor of coefficient of restitution ' \(e\) '. The total distance covered by the ball just before second hit is

1 \(h\left(1-2 e^{2}\right)\)
2 \(h\left(1+2 e^{2}\right)\)
3 \(h\left(1+e^{2}\right)\)
4 \(h e^{2}\)
Work, Energy and Power

268798 In two separate collisions, the coefficient of restitutions\(e_{1}\) and \(e_{2}\) are in the ratio \(3: 1\). In the first collision the relative velocity of approach is twice the relative velocity of separation. Then, the ratio between relative velocity of approach and relative velocity of separation in the second collision is ( \(2007 \mathrm{E}\) )

1 \(1: 6\)
2 \(2: 3\)
3 \(3: 2\)
4 \(6: 1\)
Work, Energy and Power

268799 A sphere of mass\(m\) moving with constant velocity \(u\), collides with another stationary sphere of same mass. If \(e\) is the coefficient of restitution, the ratio of the final velocities of the first and second sphere is \((2007 \mathrm{M})\)

1 \(\frac{1+e}{1-e}\)
2 \(\frac{1-e}{1+e}\)
3 \(\frac{e}{1-e}\)
4 \(\frac{1+e}{e}\)
Work, Energy and Power

268795 A ball hits the ground and loses\(20 \%\) of its momentum. Coefficient of restitution is

1 0.2
2 0.4
3 0.6
4 0.8
Work, Energy and Power

268796 A plastic ball falling from a height\(4.9 \mathrm{~m}\) rebounds number of times. If total time for second collision is \(2.4 \mathrm{sec}\), then coefficient of restitution is

1 0.3
2 0.4
3 0.7
4 0.6
Work, Energy and Power

268797 A ball is dropped from a height '\(h\) ' on to a floor of coefficient of restitution ' \(e\) '. The total distance covered by the ball just before second hit is

1 \(h\left(1-2 e^{2}\right)\)
2 \(h\left(1+2 e^{2}\right)\)
3 \(h\left(1+e^{2}\right)\)
4 \(h e^{2}\)
Work, Energy and Power

268798 In two separate collisions, the coefficient of restitutions\(e_{1}\) and \(e_{2}\) are in the ratio \(3: 1\). In the first collision the relative velocity of approach is twice the relative velocity of separation. Then, the ratio between relative velocity of approach and relative velocity of separation in the second collision is ( \(2007 \mathrm{E}\) )

1 \(1: 6\)
2 \(2: 3\)
3 \(3: 2\)
4 \(6: 1\)
Work, Energy and Power

268799 A sphere of mass\(m\) moving with constant velocity \(u\), collides with another stationary sphere of same mass. If \(e\) is the coefficient of restitution, the ratio of the final velocities of the first and second sphere is \((2007 \mathrm{M})\)

1 \(\frac{1+e}{1-e}\)
2 \(\frac{1-e}{1+e}\)
3 \(\frac{e}{1-e}\)
4 \(\frac{1+e}{e}\)
Work, Energy and Power

268795 A ball hits the ground and loses\(20 \%\) of its momentum. Coefficient of restitution is

1 0.2
2 0.4
3 0.6
4 0.8
Work, Energy and Power

268796 A plastic ball falling from a height\(4.9 \mathrm{~m}\) rebounds number of times. If total time for second collision is \(2.4 \mathrm{sec}\), then coefficient of restitution is

1 0.3
2 0.4
3 0.7
4 0.6
Work, Energy and Power

268797 A ball is dropped from a height '\(h\) ' on to a floor of coefficient of restitution ' \(e\) '. The total distance covered by the ball just before second hit is

1 \(h\left(1-2 e^{2}\right)\)
2 \(h\left(1+2 e^{2}\right)\)
3 \(h\left(1+e^{2}\right)\)
4 \(h e^{2}\)
Work, Energy and Power

268798 In two separate collisions, the coefficient of restitutions\(e_{1}\) and \(e_{2}\) are in the ratio \(3: 1\). In the first collision the relative velocity of approach is twice the relative velocity of separation. Then, the ratio between relative velocity of approach and relative velocity of separation in the second collision is ( \(2007 \mathrm{E}\) )

1 \(1: 6\)
2 \(2: 3\)
3 \(3: 2\)
4 \(6: 1\)
Work, Energy and Power

268799 A sphere of mass\(m\) moving with constant velocity \(u\), collides with another stationary sphere of same mass. If \(e\) is the coefficient of restitution, the ratio of the final velocities of the first and second sphere is \((2007 \mathrm{M})\)

1 \(\frac{1+e}{1-e}\)
2 \(\frac{1-e}{1+e}\)
3 \(\frac{e}{1-e}\)
4 \(\frac{1+e}{e}\)