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Standard VII

Physics

Kinetic Energy

Two masses m ...

Question

Two masses $m_{1}$ and $m_{2}$ collide with each other. Before the collision, the velocities were $u_{1}$ and $u_{2}$ respectively. After the collision the velocities are $v_{1}$ and $v_{2}$ . What is the final momentum after collision?

M₁ x V₂ + M₂ x V₁

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M₁ x u₂ + M₂ x u₁

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M₁ x u₁ + M₂ x u₂

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M₁ x u₁ + M₂ x V₁

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Solution

The correct option is C
M₁ x u₁ + M₂ x u₂

The total momentum is always conserved i.e., initial momentum is equal to the final momentum.

Since, Momentum = Mass x Velocity

Initial momentum = $m_{1} \times u_{1} + m_{2} \times u_{2} =$ Final momentum.

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If two masses m₁ and m₂ collide with each other. Before the collision, the velocities are u₁ and u₂ respectively. After the collision the velocities are V₁ and V₂. What is the final momentum after collision?

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Two masses m1 and m2 collide with each other. Before the collision, the velocities were u1 and u2 respectively. After the collision the velocities are v1 and v2. What is the final momentum after collision?

The correct option is C M1 x u1 + M2 x u2 The total momentum is always conserved i.e., initial momentum is equal to the final momentum. Since, Momentum = Mass x Velocity Initial momentum = m1×u1+m2×u2= Final momentum.

Two masses $m_{1}$ and $m_{2}$ collide with each other. Before the collision, the velocities were $u_{1}$ and $u_{2}$ respectively. After the collision the velocities are $v_{1}$ and $v_{2}$ . What is the final momentum after collision?

The correct option is C
M₁ x u₁ + M₂ x u₂

The total momentum is always conserved i.e., initial momentum is equal to the final momentum.

Since, Momentum = Mass x Velocity

Initial momentum = $m_{1} \times u_{1} + m_{2} \times u_{2} =$ Final momentum.