1
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A block of mass ' $m$ ' moving on a frictionless surface at speed ' $v$ ' collides elastically with a block of same mass, initially at rest. Now the first block moves at an angle ' $\theta$ ' with its initial direction and has speed ' $v_1$ '. The speed of the second block after collision is

A
$\sqrt{v_1^2-v^2}$
B
$\sqrt{v^2-v_1^2}$
C
$\sqrt{v^2+v_1^2}$
D
$\sqrt{v-v_1}$
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