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Work, Energy and Power

268617 Two particles of different masses collide head on. Then for the system

1 loss of

KE

is zero, if it was perfect elastic collision

2 If it was perfect inelastic collision, the loss of

KE

of the bodies moving in opposite directions is more than that of the bodies moving in the same direction

3 loss of momentum is zero for both elastic and inelastic collision

4 1, 2 and 3 are correct

Work, Energy and Power

268618 A $2 kg$ mass moving on a smooth frictionless surface with a velocity of $10 {ms}^{- 1}$ hits another $2 kg$ mass kept at rest, in a perfect inelastic collision. After collision, if they move together

1 they travel with a velocity of

5 {ms}^{- 1}

in the same direction

2 they travel with a velocity of

10 {ms}^{- 1}

in the same direction

3 they travel with a velocity of

10 {ms}^{- 1}

in opposite direction

4 they travel with a velocity of

5 {ms}^{- 1}

in opposite direction

Work, Energy and Power

268619 A body of mass ' $m$ ' moving with a constant velocity $v$ hits another body of the same mass moving with the same velocity $v$ but in opposite direction and sticks to it. The velocity of the compound body after the collision is

1

2 v

2

v

3

v / 2

4 zero

Work, Energy and Power

268620 In an inelastic collision, the kinetic energy after collision

1 is same as before collision

2 is always less than before collision

3 is always greater than before collision

4 may be less or greater than before collision

Work, Energy and Power

268621 A ball hits the floor and rebounds after an inelastic collision. In this case

1 the momentum of the ball just after the collision is same as that just before the collision

2 The mechanical energy of the ball remains the same in the collision

3 The total momentum of the ball and the earth is conserved

4 the total kinetic energy of the ball and the earth is conserved

Work, Energy and Power

268617 Two particles of different masses collide head on. Then for the system

1 loss of

KE

is zero, if it was perfect elastic collision

2 If it was perfect inelastic collision, the loss of

KE

of the bodies moving in opposite directions is more than that of the bodies moving in the same direction

3 loss of momentum is zero for both elastic and inelastic collision

4 1, 2 and 3 are correct

Work, Energy and Power

268618 A $2 kg$ mass moving on a smooth frictionless surface with a velocity of $10 {ms}^{- 1}$ hits another $2 kg$ mass kept at rest, in a perfect inelastic collision. After collision, if they move together

1 they travel with a velocity of

5 {ms}^{- 1}

in the same direction

2 they travel with a velocity of

10 {ms}^{- 1}

in the same direction

3 they travel with a velocity of

10 {ms}^{- 1}

in opposite direction

4 they travel with a velocity of

5 {ms}^{- 1}

in opposite direction

Work, Energy and Power

268619 A body of mass ' $m$ ' moving with a constant velocity $v$ hits another body of the same mass moving with the same velocity $v$ but in opposite direction and sticks to it. The velocity of the compound body after the collision is

1

2 v

2

v

3

v / 2

4 zero

Work, Energy and Power

268620 In an inelastic collision, the kinetic energy after collision

1 is same as before collision

2 is always less than before collision

3 is always greater than before collision

4 may be less or greater than before collision

Work, Energy and Power

268621 A ball hits the floor and rebounds after an inelastic collision. In this case

1 the momentum of the ball just after the collision is same as that just before the collision

2 The mechanical energy of the ball remains the same in the collision

3 The total momentum of the ball and the earth is conserved

4 the total kinetic energy of the ball and the earth is conserved

Work, Energy and Power

268617 Two particles of different masses collide head on. Then for the system

1 loss of

KE

is zero, if it was perfect elastic collision

2 If it was perfect inelastic collision, the loss of

KE

of the bodies moving in opposite directions is more than that of the bodies moving in the same direction

3 loss of momentum is zero for both elastic and inelastic collision

4 1, 2 and 3 are correct

Work, Energy and Power

268618 A $2 kg$ mass moving on a smooth frictionless surface with a velocity of $10 {ms}^{- 1}$ hits another $2 kg$ mass kept at rest, in a perfect inelastic collision. After collision, if they move together

1 they travel with a velocity of

5 {ms}^{- 1}

in the same direction

2 they travel with a velocity of

10 {ms}^{- 1}

in the same direction

3 they travel with a velocity of

10 {ms}^{- 1}

in opposite direction

4 they travel with a velocity of

5 {ms}^{- 1}

in opposite direction

Work, Energy and Power

268619 A body of mass ' $m$ ' moving with a constant velocity $v$ hits another body of the same mass moving with the same velocity $v$ but in opposite direction and sticks to it. The velocity of the compound body after the collision is

1

2 v

2

v

3

v / 2

4 zero

Work, Energy and Power

268620 In an inelastic collision, the kinetic energy after collision

1 is same as before collision

2 is always less than before collision

3 is always greater than before collision

4 may be less or greater than before collision

Work, Energy and Power

268621 A ball hits the floor and rebounds after an inelastic collision. In this case

1 the momentum of the ball just after the collision is same as that just before the collision

2 The mechanical energy of the ball remains the same in the collision

3 The total momentum of the ball and the earth is conserved

4 the total kinetic energy of the ball and the earth is conserved

Work, Energy and Power

268617 Two particles of different masses collide head on. Then for the system

1 loss of

KE

is zero, if it was perfect elastic collision

2 If it was perfect inelastic collision, the loss of

KE

of the bodies moving in opposite directions is more than that of the bodies moving in the same direction

3 loss of momentum is zero for both elastic and inelastic collision

4 1, 2 and 3 are correct

Work, Energy and Power

268618 A $2 kg$ mass moving on a smooth frictionless surface with a velocity of $10 {ms}^{- 1}$ hits another $2 kg$ mass kept at rest, in a perfect inelastic collision. After collision, if they move together

1 they travel with a velocity of

5 {ms}^{- 1}

in the same direction

2 they travel with a velocity of

10 {ms}^{- 1}

in the same direction

3 they travel with a velocity of

10 {ms}^{- 1}

in opposite direction

4 they travel with a velocity of

5 {ms}^{- 1}

in opposite direction

Work, Energy and Power

268619 A body of mass ' $m$ ' moving with a constant velocity $v$ hits another body of the same mass moving with the same velocity $v$ but in opposite direction and sticks to it. The velocity of the compound body after the collision is

1

2 v

2

v

3

v / 2

4 zero

Work, Energy and Power

268620 In an inelastic collision, the kinetic energy after collision

1 is same as before collision

2 is always less than before collision

3 is always greater than before collision

4 may be less or greater than before collision

Work, Energy and Power

268621 A ball hits the floor and rebounds after an inelastic collision. In this case

1 the momentum of the ball just after the collision is same as that just before the collision

2 The mechanical energy of the ball remains the same in the collision

3 The total momentum of the ball and the earth is conserved

4 the total kinetic energy of the ball and the earth is conserved

Work, Energy and Power

268617 Two particles of different masses collide head on. Then for the system

1 loss of

KE

is zero, if it was perfect elastic collision

2 If it was perfect inelastic collision, the loss of

KE

of the bodies moving in opposite directions is more than that of the bodies moving in the same direction

3 loss of momentum is zero for both elastic and inelastic collision

4 1, 2 and 3 are correct

Work, Energy and Power

268618 A $2 kg$ mass moving on a smooth frictionless surface with a velocity of $10 {ms}^{- 1}$ hits another $2 kg$ mass kept at rest, in a perfect inelastic collision. After collision, if they move together

1 they travel with a velocity of

5 {ms}^{- 1}

in the same direction

2 they travel with a velocity of

10 {ms}^{- 1}

in the same direction

3 they travel with a velocity of

10 {ms}^{- 1}

in opposite direction

4 they travel with a velocity of

5 {ms}^{- 1}

in opposite direction

Work, Energy and Power

268619 A body of mass ' $m$ ' moving with a constant velocity $v$ hits another body of the same mass moving with the same velocity $v$ but in opposite direction and sticks to it. The velocity of the compound body after the collision is

1

2 v

2

v

3

v / 2

4 zero

Work, Energy and Power

268620 In an inelastic collision, the kinetic energy after collision

1 is same as before collision

2 is always less than before collision

3 is always greater than before collision

4 may be less or greater than before collision

Work, Energy and Power

268621 A ball hits the floor and rebounds after an inelastic collision. In this case

1 the momentum of the ball just after the collision is same as that just before the collision

2 The mechanical energy of the ball remains the same in the collision

3 The total momentum of the ball and the earth is conserved

4 the total kinetic energy of the ball and the earth is conserved

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