A steel ball of mass m moving with a velocity u undergoes a perfectly elastic oblique collision with another indentical steel ball initially at rest. Show that, after the collision, they move at right angles to each other.

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A steel ball of mass m moving with a velocity u
undergoes a perfectly elastic oblique collision with
another indentical steel ball initially at rest. Show
that, after the collision, they move at right angles to
each other.
Transcribed Image Text:A steel ball of mass m moving with a velocity u undergoes a perfectly elastic oblique collision with another indentical steel ball initially at rest. Show that, after the collision, they move at right angles to each other.
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