Momentum and CollisionHardBloom L3
Question
As shown in the figure a body of mass m moving vertically with speed 3 m/s hits a smooth fixed inclined plane and rebounds with a velocity vf in the horizontal direction. If ∠ of inclined is 30°, the velocity vf will be
Options
A.3 m/s
B.$\sqrt{3}$ m/s
C.$\frac{1}{\sqrt{3}}$ m/s
D.this is not possible
Solution
Sol. 
vfcos30° = $\frac{3}{2} \Rightarrow v_{f} = \sqrt{3}$m/s
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