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Work, Energy, Power and Collision question bank (Physics)

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Q1.

$A$ block of mass '$m$' moving on a frictionless horizontal surface collides with a spring of spring constant '$K$' and compresses it through a distance '$x$'. The maximum momentum of the block after collision is

(A)

zero

(B)

$\sqrt{Km} x$

(C)

$mx^2/K$

(D)

$Kx^2/2m$

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Q2.

Consider the following statements $A$ and $B$. Identify the correct choice in the given answers.
$A$. In an inelastic collision,there is no loss in kinetic energy during collision.
$B$. During a collision,the linear momentum of the entire system of particles is conserved if there is no external force acting on the system.

(A)

Both $A$ and $B$ are wrong.

(B)

Both $A$ and $B$ are correct.

(C)

$A$ is wrong and $B$ is correct.

(D)

$A$ is correct and $B$ is wrong.

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