QJEEAdv08Phcc13: JEE Advanced 2008 Physics - Class 11 JEEAdv08Phcc13 Solution: The speed of the block at point C, immediately before it leaves …

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The speed of the block at point C, immediately before it leaves the second incline is

Accepted Answer

$v_{C}^{2} - v_{B}^{2} = 2 a s$

$v_{C}^{2} - 45 = 2 \times 10 \times 3$

$v_{c} = \sqrt{60 + 45} = \sqrt{105} m s^{- 1}$ is the velocity of block just before leaving incline.

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